CT Technologist References

CT Technologist References

See the complete reference spreadsheet with formatting here (requires the ability to access Google Sheets):

https://docs.google.com/spreadsheets/d/1hyWDS2V5PJ9tSN5fJ6Oth8Wsc2eakJQNGlh8f1jAHfI/

CT Head, without contrast
Indications and preparation
Indications:- memory loss, shunt check, TIA, trauma, AMS, CVA, MVA, HA, dementia, hemorrage, alzheimers, dizziness, ataxia
Preparation:- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrastn/an/a- base of skull to top of head
ParameterskVpmAscollimationpitchdirection
Siemens 12812032032 x1.2axial scanbottom to top
Siemens 1612035012 x1.5axial scanbottom to top
GE 64120auto MA5.0 mm/20 intervalaxial scanbottom to top
GE 16120auto MA5.0 mm/10 intervalaxial scanbottom to top
Comments:- scan in standard algorithm; WW 90 WL 35 ASIR 30% (GE 64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX5.0/20bone plus2000/200
GE 16entire volumeAX5.0/10bone plus2000/200
Siemens 128entire volumeAX5.0/32x1.2bone2500/450
Siemens 16entire volumeAX4.5bone
Comments:Siemens 16
Add sagittal and coronal reformations to all in standard algorithm, WW 90 WL 35
CT Head, with contrast
Indications and preparation
Indications:- mets, hx of cancer, AIDS, abscess, meningitis, tumor
Preparation:- NPO 2 hours prior to scan
Contrasttyperatevolumesaline flush
intravenousnonionic2.5cc/sec80cc0
Acquisitionscan delayrespirationanatomic coverage
post-contrast2-3minutesn/a- base of skull to top of head
ParameterskVpmAscollimationpitchdirection
Siemens 1281203205.0/32x1.2axialbottom to top
Siemens 1612035012/1.5bottom to top
GE 64120auto MA5.0mm/ 20 intervalaxial scanbottom to top
GE 16120auto MA5.0mm/ 10 intervalaxial scanbottom to top
Comments:- scan in standard algorithm; WW 90 WL 35 ASIR 30% (GE 64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX5.0/20bone plus2000/200
GE 16entire volumeAX5.0/10bone plus2000/200
Siemens 16entire volumeAX4.5bone
Siemens 128entire volumeAX5.0/32x1.2bone2500/450
Siemens 4entire volumeAX5/2.5boneKernel-H60s sharp
Comments: Siemens 16
CTA and CTV Head
Indications and preparation
Indications:- CVA, aneurysm, stroke
Preparation:- NPO
Contrasttyperatevolumesaline flush
intravenous- nonionic5cc/sec20cc test injection; 80cc for scan50cc after test; 50cc for scan
Comments:  - bolus track on SIEMENS with 100 cc and 50cc IV flush
Acquisitionscan delayrespirationanatomic coverage
test injectionOn/a- C-2
post-contrastdepends on test inject'nn/a- C-2 to top of head
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D3.0x/ 123x0.60.45bottom to top
Siemens 1612020016x.750.65arch to top
GE 64120auto MA1.25 x 1.250.516:1bottom to top
GE 16120auto MA1.25 x 1.250.562:1bottom to top
Comments: - CTV coverage from skull base to vertex with delay based on venous tracking parameters (typically 30-45 seconds should be adequate if bolus track not used). Sagittal and coronal reformats with MIP reconstructions.
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64, GE 16entire volumeAX0.625/0.625standard600/250
GE 64, GE 16entire volumeSAG/COR MIP5.0/1.0standard600/250
Comments:- thin reformats sent out for 3D reconstructions on CTA
CTA Head and Neck
Indications and preparation
Indications:- CVA, aneurysm, stroke, stenosis
Preparation:- NPO
Contrasttyperatevolumesaline flush
intravenous- nonionic5cc/sec80cc50cc
Comments:  - bolus track on SIEMENS with 100 cc and 50cc IV flush
Acquisitionscan delayrespirationanatomic coverage
post-contrastsmart prep arch n/a- below arch to top of head
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D3.0/123x0.60.55bottom to top
Siemens 1612020016x.750.65bottom to top
GE 64120Auto MA2.5 x 2.50.984:1bottom to top
GE 16120Auto MA2.5 x 2.50.938:1bottom to top
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
Siemens 128entire volumeAxial0.625mmx0.625mmstandard700/80
GE 64, GE 16entire volumeAxial0.625/0.625standard600/250
GE 64, GE 16entire volumeCOR/bilat SAG oblique1.0/1.0standard600/250
GE 64, GE 16head onlyAX/COR/SAG MIP5.0/1.0standard600/250
Siemens 16Head MIP3 plane5.0/1.0
Siemens 16neckCOR/SAG Oblique1.0/1.0
Siemens 128neckCOR5.0/1.0standard700/80
Siemens 128Rt&Lt obliquesSAG5.0/1.0standard950/250
Siemens 128head onlyAX/COR/SAG MIP5.0/1.0standard700/80
Comments:- thin reformats sent out for 3D reconstructions
Stealth Brain/Deep Brain Stimulator
Indications and preparation
Indications:- pre-op
Preparation:- none
Contrasttyperatevolumesaline flush
- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- top of head through maxillary sinuses
ParameterskVpmAscollimationpitchdirection
Siemens 128120CareDose 4D0.6mm/128x0.60.55Bottom to top
GE 64120Auto MA1.25 x 1.250.531:1top to bottom
GE 16120Auto MA1.25 x 1.250.562:1top to bottom
Comments: - include all soft tissue including top of head WW 90 WL 35
- give patient a CD if scanned days prior to surgery. Send scan to DPSTEALTH if done day of surgery
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
Siemens 128entire volumeAX0.6mmx0.6mmH70h very sharpstealth bone
Siemens 128entire volumeAX2.0mmx2.0mmH31ssinus stnd
Siemens 128entire volumeAX2.0mmx2.0mmH70h very sharpbone
Siemens 128entire volumeSAG / COR0.6mmx0.6mmH70h very sharpstealth bone

CT Orbits, without contrast
Indications and preparation
Indications:- trauma, fracture
Preparation:- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- above orbits to roof of mouth
ParameterskVpmAscollimationpitchdirection
Siemens 128Care KVCare Dose4D2.0mm/128x0.60.8bottom to top
Siemens 16
Siemens 41201001slice3/inc3
GE 64120Auto MA0.625/0.6250.531:1top to bottom
GE 16120Auto MA2.5x2.51.375:1top to bottom
Comments:- scan in bone algorithm WW 2500 WL1000 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64 entire volumeAX2.5/2.5bone2500/1000
GE 64, GE 16entire volumeAX2.5/2.5standard350/40
GE 64, GE 16entire volumeCOR/SAG2.0/2.0bone2500/1000
Siemens 4kernel H60s-recon 2AX1.25/.6bone
Siemens 4kernel H20sAX3.0/3.0Abdomen/Soft
Siemens 4COR/SAGrecon 2 abovebone
Siemens 128entire volumeCOR/SAG2.0/2.0
Siemens 128entire volumeAX2.0/2.0H30s400/40
Siemens 128entire volumeCOR/SAG2.0/2.0H60s sharp2500/450
Comments:
CT Orbits, with contrast
Indications and preparation
Indications:- abscess, swelling and redness
Preparation:- NPO 2 hours prior to scan
Contrasttyperatevolumesaline flush
intravenousnonionic2.5cc/sec80cc 0
Acquisitionscan delayrespirationanatomic coverage
post-contrast90 secN/A- above orbits to roof of mouth
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D20.mm/128x0.6mm0.8bottom to top
Siemens 16
Siemens 41201001slice 3.0/inc 3.0
GE 64120Auto MA0.625/0.6250.531:1top to bottom
GE 16120Auto MA2.5x2.51.375:1top to bottom
Comments:- scan in bone algorithm WW 2500 WL1000 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64 entire volumeAX2.5/2.5bone2500/1000
GE 64, GE 16entire volumeAX2.5/2.5standard350/40
GE 64, GE 16entire volumeCOR/SAG2.0/2.0bone2500/1000
Siemens 4kernel H20s-recon 2AX1.25/.6Abdomen/Soft
kernel H60sAX3.0/3.0bone
COR/SAGrecon 2 abovebone
Siemens 128entire volumeAX2.0/2.0H30s400/40
Siemens 128entire volumeCOR/SAG2.0/2.0H30s400/40
Comments:

Temporal bone CT
Indications and preparation
Indications:- tinnitus, cholesteatoma, otitis media, mastoiditis, trauma, etc.
Preparation:- none
Contrasttyperatevolumesaline flush
intravenous- none
oral- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- most inferior mastoid through top of mastoid air cells
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 161201502/.060.8
Siemens 41201700.51.0/1.0rot. time .75
GE 641203200.531:1
GE 161203200.562:1
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
Siemens 4Rt and Lt separateCOR/AX1.25/0.6bone
Siemens 16Rt and Lt separateCOR/AX.6/.6bone
GE 64Rt and Lt separateCOR/AX0.625/0.625bone plus
GE16Rt and Lt separateCOR/AX1.25/1.25 (.625 if doable)bone plus
Comments:Scan FOV 25 for GE with Recon FOV of 10.  Note for GE 16: if scanning at .625, recon at .625 too

CT Face, without contrast
Indications and preparation
Indications:- trauma, MVA, abnormal X-Ray, pain, fracture
Preparation:- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- above frontal sinuses though soft tissue of mandible
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D2.0mm/128x0.6mm0.8bottom to top
Siemens 16
Siemens 41201001slice 3/3
GE 64120Auto MA0.625x0.6250.531:1top to bottom
GE 16120Auto MA2.5/2.50.938:1top to bottom
Comments:- scan in bone algorithm WW 2500 WL 1000 with 30% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5bone plus2500/1000
GE 64, GE16 entire volumeAX2.5/2.5standard400/40
GE 64, GE16 entire volumeCOR/SAG2.0/2.0bone2500/1000
Siemens 4 kernel H60s-recon 2AX1.25/.6bone
kernel H20sAX3.0/3.0abdomen/soft
COR/SAGrecon 2 abovebone
Siemens 128entire volumeAX2.0/2.0H30s400/40
Siemens 128entire volumeCOR/SAG2.0/2.0H60s Sharp2500/450
Siemens 128entire volumeCOR/SAG2.0/2.0H30s400/40
Comments:
CT Face, with contrast
Indications and preparation
Indications:- abscess, mass, facial swelling and/or redness without trauma
Preparation:- NPO 2 hours prior to scan
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec80cc0
oral- none
Acquisitionscan delayrespirationanatomic coverage
post-contrast90 secN/A- above frontal sinuses through soft tissue of mandible
ParameterskVpmAscollimationpitchdirection
Siemens 128Care 4DCare Dose 4D2.0mm/128x0.6mm0.8bottom to top
Siemens 16
Siemens 4
GE 64120Auto MA0.625x0.6250.531:1top to bottom
GE 16120Auto MA2.5/2.50.938:1top to bottom
Comments:- scan in bone algorithm WW 2500 WL 1000 with 30% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5bone plus2500/1000
GE 64, GE16 entire volumeAX2.5/2.5standard400/40
GE 64, GE16 entire volumeCOR/SAG2.0/2.0bone2500/1000
Siemens 4 kernel H20s-recon 2AX1.25/.6abdomen/soft
kernel H60sAX3.0/3.0bone
COR/SAGrecon 2 abovebone
Siemens 128entire volumeAX2.0/2.0H30s400/40
Siemens 128entire volumeCOR/SAG2.0/2.0H30s400/40
Comments:

CT Sinuses, without contrast
Indications and preparation
Indications:- sinusitis, headache, congestion, pressure
Preparation:- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- top of frontal sinuses through maxillary sinuses
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D2.0mm/128x0.6mm0.8bottom to top
Siemens 1612012016/0.753.0/3.0rot time=1.0
Siemens 41201001slice 3.0/3.0rot time=.75
GE 64120Auto MA0.625 x 0.6250.531:1top to bottom
GE 16120Auto MA2.5 x 2.51.375:1top to bottom
Comments: - scan in bone algorithm WW 2500 WL 250 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
reconstructions for PACS
GE 64entire volumeAX2.5/2.5bone2500/250
GE16, GE 64entire volumeCOR/SAG2.0/2.0bone2500/250
thins for reconstruction
Siemens 4 H60sCOR1.25/.6
Siemens 16H60sCOR.75/.5
Siemens 128entire scanAX2.0/2.0H30s 400/40
Siemens 128entire scanCOR/SAG2.0/2.0H60s sharp2500/450
Comments:
CT Sinuses, with contrast
Indications and preparation
Indications:- abscess
Preparation:- NPO 2 hours prior to scan
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec80cc0
Acquisitionscan delayrespirationanatomic coverage
post-contrast90sec n/a- top of frontal sinuses through maxillary sinuses
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D2.0mm/128x0.60.8bottom to top
Siemens 16
GE 64120Auto MA0.625 x 0.6250.531:1top to bottom
GE 16120Auto MA2.5 x 2.51.375:1top to bottom
Comments: - scan in bone algorithm WW 2500 WL 250 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5bone2500/250
GE16, GE 64entire volumeCOR/SAG2.0/2.0bone2500/250
GE 16, GE 64entire volumeCOR/SAG2.0/2.0standard400/50
Siemens 128entire volumeAX2.0mmx2.0mmH30s400/40
Siemens 128entire volumeCOR/SAG2.0mmx2.0mmH60s sharp2500/450
Comments:
CT Sinuses, STEALTH protocol
Indications and preparation
Indications:- preoperative assessment
Preparation:- none
Contrasttyperatevolumesaline flush
intravenous- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- top of frontal sinuses through maxillary sinuses
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 1612012016x.750.8
GE 64
GE 16
Comments:
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64
GE16, GE 64
Siemens 16H60sCOR1.0/.5

CT Neck, without contrast
Indications and preparation
Indications:- contraindication to IV contrast, mass, metastases, cancer, swelling, dysphagia
Preparation:- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- nasion/supraorbital ridge to lung apex
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCareDose 4D3.0mm/128x0.6mm0.8top to bottom
Siemens 161202201.50.7Recon 1-B20f smooth
Siemens 4
GE 64120Auto MA0.625x0.6250.984:1top to bottom
GE 16120Auto MA2.5 x 2.50.938:1Top to bottom
Comments: - scan in standard algorithm WW 400 WL 50 with 40% ASIR (GE 64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5standard350/50
Ge 16 GE 64entire volumeAX2.5/2.5bone2000/250
Ge 16 GE 64entire volumeCOR/SAG3.0/3.0standard350/50
Siemens 16Recon 2kernel-B60s2.0/0.8abdomen
Recon 3kernel-B60f3.0/3.0lung
Siemens 128entire volumeAX3.0mmx3.0mmB60s sharp2890/595
Siemens 128entire volumeCOR/SAG
Comments: - Siemens - Coronal (angled parallel to trachea) and Sagittal 3/3 of Recon2.
CT Neck, with contrast
Indications and preparation
Indications:- mass, mets, cancer, swelling, dysphagia
Preparation:- NPO 2 hours proir to scan; advise patient to NOT swallow during scan
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec80cc0
oral- none
Acquisitionscan delayrespirationanatomic coverage
post-contrast120-180 secondsn/a- nasion/supraorbital ridge to lung apex
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D3.0mm/128x0.6mm0.8top to bottom
Siemens 161202201.50.7Recon 1-B20f smooth
GE 64120Auto MA0.625x0.6250.984:1top to bottom
GE 16120Auto MA2.5 x 2.50.938:1Top to bottom
Comments: - scan in standard algorithm WW 400 WL 50 with 40% ASIR (GE 64)
*Add angled slices oriented parallel to maxillary and mandibular ridges when and where possible to reduce limitations of dental artifacts
*Add axial thin section recons (1 mm or less) parallel to vocal cords with sagittal and coronal reformats of cords for ALL laryngeal CA cases (including history of hoarseness, stridor, etc.)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5standard350/50
Ge 16 GE 64entire volumeAX2.5/2.5bone2000/250
GE 16, GE 64entire volumeCOR/SAG3.0/3.0standard350/50
Siemens 16Recon 2kernel-B60s2.0/0.8abdomen
Recon 3kernel-B60f3.0/3.0lung
Siemens 128entire volumeAX3.0mmx3.0mmB60s sharp2890/595
Siemens 128entire volumeCOR/SAG3.0mmx3.0mmB30s435/55
Comments: * History of larynx CA, vocal cord paralysis or larynx trauma must also perform thin section AX reformats from hyoid to cricoid (parallel to vocal cords/C5-6) with thin section direct coronal through larynx/trachea
- Siemens - Coronal (angled parallel to trachea) and Sagittal 3/3 of Recon2.
CTA Neck / Carotid arteries
Indications and preparation
Indications:- CVA, aneurysm, stroke, stenosis
Preparation:- NPO
Contrasttyperatevolumesaline flush
intravenous- nonionic5cc/sec80cc50cc
Acquisitionscan delayrespirationanatomic coverage
post-contrastSmart Prep Arch n/a- below arch to lateral horns
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D3.0mmx/128x0.60.75Bottom to top
Siemens 16
Siemens 4
GE 64120Auto MA2.5 x 2.50.969:1bottom to top
GE 16120Auto MA2.5 x 2.51.375:1bottom to top
Comments:
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64, GE 16entire volumeAxial0.625/0.625standard600/250
GE 64, GE 16entire volumeCor/ Rt&LT sagittal oblique of each carotid1.0/1.0standard600/250
Siemens 128entire volumeAX0.625x0.625B26f700/80
Siemens 128neckCOR5.0/1.0B31f 700/80
Siemens 128Rt & Lt ObliqueSAG1.0/1.0B31f 950/250
Comments:- thin reformats sent out for 3D reconstructions

Abdomen / Pelvis with contrast
Indications and preparation
Indications:- pain, cancer, diverticulitis, lymphoma
Preparation:- NPO 2 hours prior, pick up oral contrast
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec100cc0
oral-Per protocol
Comments: - oral contrast is picked up by outpatients the night before with instructions
Acquisitionsscan delayrespirationanatomic coverage
post-contrastSmart prep ROI Liver or 70 sec delayinspirationDome of diaphragm to symphysis pubis bone
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kV or 120Care Dose 4D128 x 0.60.6top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
entire volumeAX2.5-3.0/2.5-3.0standardAX standard
lungs only AX2.5-3.0/2.5-3.0lungAX lung
entire volumeSAG/COR3.0/3.0standardSAG/COR
Comments:
Abdomen / Pelvis without contrast
Indications and preparation
Indications:- stones, pain, cancer, diverticulitis, lymphoma, contraindication to IV contrast
Preparation:- NPO 2 hours prior, pick up oral contrast
Contrasttyperatevolumesaline flush
intravenous- none
oralPer protocol
Comments: - oral contrast is picked up by outpatients the night before with instructions
Acquisitionsscan delayrespirationanatomic coverage
noncontrastn/ainspiration- top of diaphragm through symphysis pubis
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
entire volumeAX2.5-3.0/2.5-3.0standardAX standard
lungs only AX2.5-3.0/2.5-3.0lungAX lung
entire volumeSAG/COR3.0/3.0standardSAG/COR
Comments:
Enterography
Indications and preparation
Indications:- gi bleed, crohn disease, ulcerative colitis, small bowel tumor, celiac disease
Preparation:- NPO Pt comes in 1 hour prior to appoinment to drink contrast
Contrasttyperatevolumesaline flush
oralVolumen BA or equivalent negative oral contrast agent (3 bottles total)60min prior (450ml), 40 min prior (450), 20 min prior (225ml), 10 min prior (225ml) - or equivalent volumes if using different negative contrast agent1350 ml total - or equivalent volume if using different negative contrast agent0
intravenousnonionic4-5 cc/sec125cc0
Acquisitionsscan delayrespirationanatomic coverage
post-contrastSmart prep ROI in aorta for arterial phase then 65 sec delayinspiration- top of diaphragm through symphysis pubis
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6Top to bottom
GE 64140auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16140auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
entire volumeAX2.5/2.5standardAX standard
lungs only AX3.75/3.75lungAX lung
entire volumeSAG/COR3.0/3.0standardSAG/COR
Comments: Arterial and enteric phase should be performed for cases of GI bleed and small bowel tumors. Single enteric phase at 65-70 sec after injection can be performed for inflammatory bowel disease, Chron's, ulcerative colitis, etc.If performed, AX arterial and AX venous
CT Colonography
Indications and preparation
Indications:incomplete colonscopy, colon cancer screening
Preparation:standard colonography prep
Contrasttyperatevolumesaline flush
oralrectal insufflationprotocolprotocoln/a
intravenousnonionic (if needed)2-3 cc/sec125cc0
Acquisitionsscan delayrespirationanatomic coverage
supine60 sec delay when neededexpirationTop of diaphragm to symphysis pubis bone
prone60 sec delay when neededexpirationsame as above
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6Top to bottom
GE 64140Auto MA, Smart MA64 x 0.6251.375:1top to bottom
GE 16140Auto MA, Smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
entire volumeAX2.5/2.5standard
entire volumeSAG/COR 3/3/2015standard
Comments: Same as above
Chest, abdomen, pelvis CT
Indications and preparation
Indications:Oncology follow up,
Preparation:- NPO 2 hours prior, pick up oral contrast
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec100cc0
oralPer protocol
Comments: - oral contrast is picked up by outpatients the night before with instructions
Acquisitionsscan delayrespirationanatomic coverage
post-contrast70 sec delayinspirationSupraclavicular to symphysis pubis bone
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kV or 120Care Dose 4D128 x 0.60.6top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
entire volumeAX2.5-3.0/2.5-3.0standardAX standard
lungs only AX2.5-3.0/2.5-3.0lungAX lung
thinsAX1.0/1.0standardAX lung thin
MIPAX8/3standardAX lung MIP
entire volumeSAG/COR3.0/3.0standardSAG/COR
Comments:
CTA chest, abdomen, pelvis
Indications and preparation
Indications:Chest pain, aortic dissection
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
noncontrastnoneinspirationChest only if chest pain or r/o dissection.
post-contrastSmart prep aortic archinspirationlung apices through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
nonconAX2.5-3standard
post conAX2 -2.5standard
lungsAX2.5 - 3lung
post conSag, Cor, Candy cane MPR2 -2.5standard
post conCandy Cane MIP, coronal to aorta5 x 2.5
Comments: Send thins to 3D lab if preoperative patient.
CTA chest, abdomen, pelvis (stent)
Indications and preparation
Indications:stent follow up
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
noncontrastnoneinspirationthrough stent only
arterial post-contrastSmart prep aortic archinspirationlung apices through pubic symphysis
venous post contrast80 sec delayinspirationthrough stent only
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
nonconAX5standard
arterial and venous post conAX2standard
lungsAX2.5lung
non conSag, cor MPR3 x 3standard
arterial post conSag, cor MPR2 x 1standard
arterial post conCandy cane and candy Cor to aorta MIP5 x 2.5
venous post conSag, cor MPR3 x 3standard
Comments: Send thins to 3D lab
CTA chest, abdomen, pelvis (no stent)
Indications and preparation
Indications:aneurysm, preop
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
noncontrastnoneinspirationchest, abdomen, pelvis
arterial post-contrastSmart prep aortic archinspirationlung apices through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
nonconAX5standard
arterial and venous post conAX2standard
lungsAX2lung
non conSag, cor MPR3 x 3standard
arterial post con chest onlySag, cor, candy cane MPR2 x 1standard
arterial post con abdomen/pelvis onlySag, cor, candy cane MPR2 x 1standard
arterial post con c/a/pCor, sag, candy cane MIPs5 x 2.5
Comments: Send thins to 3D lab
CTA Aortic dissection (abdomen only)
Indications and preparation
Indications:Chest pain, aortic dissection
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
noncontrastnoneinspirationabdomen/pelvis
post-contrastSmart prep descending aortainspirationdiaphragm through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
nonconAX2.5standard
post conAX2standard
lungsAX2.5lung
post conSag, Cor MPR1 x 1standard
post conSag/Cor MIP5 x 2.5only if not sent to 3D
Comments: Typically do not need to send to 3D if out of the ER, otherwise send to 3D
CTA abdomen, pelvis
Indications and preparation
Indications:occlusive disease, decreased pulses
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
post-contrastSmart prep aorta at celiac arteryinspirationdiaphragm through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
post conAX2-2.5standard
lungsAX2.5-3lung
post conSag, Cor MPR2 x 1standard
post conSag/Cor MIP10 x 2.5only if not sent to 3D
Comments: Send thins to 3D lab.
CTA AP - Acute GI bleed
Indications and preparation
Indications:Acute GI bleed workup, evaluate for source of bleeding
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
noncontrastnoneinspirationabdomen/pelvis
post-contrast arterialSmart prep aorta at celiac arteryinspirationdiaphragm through pubic symphysis
post-contrast delay70 secondsinspirationdiaphragm through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
All 3 phasesAX2-2.5standard
lungsAX2.5-3lung
Arterial and delaySag, Cor MPR2 x 1standard
ArterialSag/Cor MIP10 x 2.5standard
Comments: DO NOT send to 3D lab
CTA AAA (no stent)
Indications and preparation
Indications:AAA
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
unenhancednoneinspirationabove diaphragm through pubic symphysis
post-contrastSmart prep descending aortainspirationdiaphragm through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
unenhancedAx5standard
post conAX2-2.5standard
lungsAX2.5-3lung
post conSag, Cor MPR1.5 x 1.5standard
post conSag/Cor MIP12 x 3only if not sent to 3D
Comments: Send thins to 3D lab.
CTA Mancoll Flap
Indications and preparation
Indications:Breast reconstruction
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
post-contrastSmart prep aorta at celiac arteryinspirationdiaphragm through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
post conAX1-1.25standard
lungsAX2.5-3lung
post conSag/Cor/Ax MIP10 x 3
Comments: Do not send to 3D
CTA Mesenteric Ischemia
Indications and preparation
Indications:mesenteric ischemia
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
arterial post-contrastSmart prep descending aortainspirationdiaphragm through pubic symphysis
venous post contrast60 sec delay from injectioninspirationdiaphragm through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
arterial and venous post conAX2-2.5standard
lungsAX2.5-3lung
arterial and venous post conSag, Cor MPR3 x 3standard
Comments: Send thins to 3D lab.
CTA abdomen pelvis AAA (stent)
Indications and preparation
Indications:stent follow up
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
noncontrastnoneinspirationthrough stent only (only needed on first follow up scan)
arterial post-contrastSmart prep aortic archinspirationdiaphragm through pubic symphysis
venous post contrast90 sec delayinspirationthrough stent only
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
nonconAX5standard
arterial post conAX1-1.25standard
venous post conAX5standard
lungsAX2.5lung
non conSag, cor MPR3 x 3standard
arterial post conSag, cor MPR1.5 x 1.5standard
arterial post conCor/Sag MIP12 x 3only if not sent to 3D
Comments: Send thins to 3D lab
CTA Renal Artery Stenosis
Indications and preparation
Indications:Renal artery hypertension workup
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
arterial post-contrastSmart prep aorta at celiac arteryinspirationdiaphragm through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
arterial and venous post conAX2-2.5standard
lungsAX2.5-3lung
post conSag, Cor MPR1 x 1standard
post conSag, Cor MIP5 x 1
Comments: Send thins to 3D
CTA Runoff
Indications and preparation
Indications:peripheral artery disease
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
noncontrastnoneinspirationdiaphragm to pubic symphysis only if known AAA
arterial post-contrastper timing bolus protocolsinspirationdiaphragm through ankles/toes
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
nonconAx5
arterial post conAX2.5 x 1.25standard
lungsAX2.5-3lung
post conSag, Cor MPR in overlapping body sections (A/P, thighs, lower legs)2 x 1standard
post conCor/Sag MIPs5 x 2.5only if not sent to 3D
Comments: Send thins to 3D lab.
CTA Upper extremity
Indications and preparation
Indications:trauma, upper extremity aneurysm, vasculitis
Preparation:- NPO 2 hours prior
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral-None
Comments:
Acquisitionsscan delayrespirationanatomic coverage
arterial post-contrastSmart prep aortic archinspirationdepends on anatomy of interest. Affected arm should be above head.
ParameterskVpmAscollimationpitchdirection
Siemens 64Care kV or 120Care Dose 4D64 x 0.61top to bottom
GE 64120auto MA, smart MA64 x 0.6251.375:1top to bottom
GE 16120auto MA, smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm; WW 400 WL 50 with 30% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithm
arterial post conAX1 - 1.25standard
post conSag, Cor MPR2 x 1standard
post conSag, Cor MIP5 x 2.5only if not sent to 3D
Comments: Send thins to 3D

Abdomen - Hypervascular malignancies
Indications and preparation
Indications:- initial staging and follow up of neuroendocrine cancers (including carcinoid, islet cell tumors, malignant pheo) and melanoma
Preparation:- NPO 2 hours prior, pick up oral contrast
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral- Per protocol
Comments: - IV access should be able to support injection rate of 4-5 cc/sec.
Acquisitionscan delayrespirationanatomic coverage
noncontrast0inspiration - entire liver
arterial35sinspiration - entire liver
venous70sinspiration - as ordered, could be abdomen only, abdomen/pelvis, or chest/abdomen/pelvis
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6top to bottom
GE 64120Auto MA, Smart MA64 x 0.6250.984:1top to bottom
GE 16120Auto MA, Smart MA16 x 1.251.375:1top to bottom
Comments:- scan in standard algorithm WW 350 WL 50 with 40% ASIR
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/Lpreferred PACS title
arterialentire volumeAX2.5 x 2.5standard350/50AX arterial
post contrastlungs onlyAX2.5/2.5lung1500/-600AX lung
venousentire volumeAX2.5/2.5standard350/50AX venous
venousentire volumeCOR/SAG3.0/3.0standard350/50COR/SAG

CT Pelvis, with contrast
Indications and preparation
Indications:- pain, cancer, abscess, pelvic DVT
Preparation:- NPO 2 hours prior, pick up oral contrast
Contrasttyperatevolumesaline flush
intravenousnonionic2.5cc/sec100cc0
oral32oz 1 hour prior1 hour before scan 32oz n/a
Comments: - oral contrast is picked up by outpatients the night before with instructions
Acquisitionscan delayrespirationanatomic coverage
post-contrast90 sec (120 sec if pelvic venogram)inspiration- above iliac crest to below symphysis pubis
delay if needed5 min inspiration- above iliac crest to below symphysis pubis
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6Top to bottom
GE 64120Auto MA, Smart MA16 x 0.6251.375:1top to bottom
GE 16120Auto MA, Smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm WW 400 WL 50 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
Entire scanAxial3.0/3.0Stnd350/40
Entire scanSag/Cor3.0/3.0Stnd350/40
Comments:- no delay reformats
Bony CT Pelvis
Indications and preparation
Indications:- pain, fracture, abnormal X-Ray, bone lesion, trauma
Preparation:- none
Contrasttyperatevolumesaline flush
intravenous- none
oral- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastoInspiration- above iliac crest to below symphysis pubis
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 16
GE 64120Auto MA, Smart MA0.625 x 0.6251.375:1top to bottom
GE 16120Auto MA, Smart MA2.5 x 2.50.938:1top to bottom
Comments: Scanned in Bone algorithm WW 2000 WL 250 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64Entire scanAxial2.5/2.5Bone2000/250
GE 64Entire scanAxial2.5/2.5Stnd350/40
GE 64, GE 16Entire scanSag/Cor3.0/3.0Bone2000/250

CT Cystogram
Indications and preparation
Indications:- bladder trauma, bladder fistula
Preparation:foley cather in place and bladder empty.
Contrasttyperatevolumesaline flush
intravenousnonen/an/an/a
bladder contrastdilute contrast per protocol (about 25 ml Omnipaque 350 in 500 cc bag of saline)fill bladder by gravity300-400 ml n/a
Comments:
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/ainspiration- above iliac crest to below symphysis pubis
cystogramafter filling bladderinspiration- above iliac crest to below symphysis pubis
postcystogramafter emptying bladderinspiration- above iliac crest to below symphysis pubis
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6Top to bottom
GE 64120Auto MA, Smart MA16 x 0.6251.375:1top to bottom
GE 16120Auto MA, Smart MA16 x 1.251.375:1top to bottom
Comments: - scan in standard algorithm WW 400 WL 50 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
cystogramAxial3.0/3.0Stnd350/40
cystogramSag/Cor3.0/3.0Stnd350/40
Comments:May need reformats on non con or post cystogram per radiologist discretion.
Bony CT Pelvis
Indications and preparation
Indications:- pain, fracture, abnormal X-Ray, bone lesion, trauma
Preparation:- none
Contrasttyperatevolumesaline flush
intravenous- none
oral- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastoInspiration- above iliac crest to below symphysis pubis
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 16
GE 64120Auto MA, Smart MA0.625 x 0.6251.375:1top to bottom
GE 16120Auto MA, Smart MA2.5 x 2.50.938:1top to bottom
Comments: Scanned in Bone algorithm WW 2000 WL 250 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64Entire scanAxial2.5/2.5Bone2000/250
GE 64Entire scanAxial2.5/2.5Stnd350/40
GE 64, GE 16Entire scanSag/Cor3.0/3.0Bone2000/250

Liver mass
Indications and preparation
Indications:- hemangioma, elevated LFTs, liver lesion, Hepatocellular carcinoma (HCC, liver cancer)
Preparation:- NPO 2 hours prior, oral contrast not necessary if evaluating a specific liver abnormality
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocolper protocol
oral- not required
Comments: - oral contrast not required but can be used if liver work-up is part of a whole abdomen and pelvis for cancer staging. IV access should be able to support injection rate of 4-5 cc/sec.
Acquisitionscan delayrespirationanatomic coverage
noncontrast0inspiration - entire liver
arterial35sinspiration - entire liver
venous70sinspiration - top of diaphragm through aortic bifurcation
delayed5 mininspiration - liver and kidneys
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6top to bottom
GE 64120Auto MA, Smart MA64 x 0.6250.984:1top to bottom
GE 16120Auto MA, Smart MA16 x 1.251.375:1top to bottom
Comments:- scan in standard algorithm WW 350 WL 50 with 40% ASIR
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/Lpreferred PACS title
non contrastentire volumeAX2.5/2.5standard350/50AX noncon
non contrast entire volumeCOR3.0/3.0standard350/50COR noncon
post contrastentire volumeAX2.5 x 2.5standard350/50AX arterial/AX venous
post contrastlungs onlyAX2.5/2.5lung1500/-600AX lung
post contrastentire volumeCOR/SAG3.0/3.0standard350/50COR venous/SAG venous
Delayentire volumeAX2.5/2.5standard350/50AX delay
Delayentire volumeCOR3.0/3.0standard350/50COR delay

Chest CT, without contrast
Indications and preparation
Indications:Lung nodule/mass, lung or metastatic cancer, pneumonia, shortness or breath, interstitial lung disease, chest trauma, abnormal chest radiograph, pleural effusion
Preparation:- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrastn/ainspiration- above lung apices through adrenals
ParameterskVpmAcollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.61.2top to bottom
Siemens 64Care kVCare Dose 4D64 x 0.61.2top to bottom
Siemens 16120Care Dose 4D16 x 1.50.6top to bottom
GE 64120Auto MA, Smart MA64 x 0.6251.375top to bottom
GE 16120Auto MA, Smart MA16 x 1.251.375top to bottom
Comments: - scan in standard algorithm WW 400 WL 50 with 40% ASIR (GE64)
ReconstructionsPrefered PACS titleplanethickness/incrementalgorithmwindow W/L
AX/COR/SAG lungAX/COR/SAG3.0/3.0Lung/B60f sharp1500/-600
AX standardAX3.0/3.0Standard/B20f smooth350/50
AX thinAX1.0/1.0Standard/B20f smooth1500/-600
AX MIPAX MIP8.0/3.0Standard/B20f smooth1500/-600
Comments: - MAX CTDI: 25
Chest CT, with contrast
Indications and preparation
Indications:Lung nodule/mass, lung or metastatic cancer, pneumonia, shortness or breath, interstitial lung disease, chest trauma, abnormal chest radiograph, pleural effusion
Preparation:- No solids 2 hours prior to scan
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec100 mL0
Acquisitionsscan delayrespirationanatomic coverage
post-contrastSmart Prep Aortainspiration- above lung apices through adrenals
OTHERWISE SAME AS NON-CON ABOVE
High resolution Chest CT
Indications and preparation
Indications:- interstital lung disease, bronchiectasis, emphysema, alveolitis, asbestosis, sarcoid
Preparation:- none
Contrasttyperatevolumesaline flush
- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrastn/aSee below- supine, through entire lungs / prone, carina through lung bases
ParameterskVpmAcollimationpitchdirection
Siemens 128
Inspiration supineCare kVCare Dose 4D128 x 0.61.2top to bottom
Expiration and ProneCare kVCare Dose 4D2 x 1.0axial - 10 mm spacingtop to bottom
Siemens 64
Inspiration supineCare kVCare Dose 4D64 x 0.61.2top to bottom
Expiration and ProneCare kVCare Dose 4D2 x 1.0axial - 10 mm spacingtop to bottom
Siemens 16
Inspiration supine120Care Dose 4D16 x 1.51.5top to bottom
Expiration and Prone120Care Dose 4D2 x 0.75axial - 10 mm spacingtop to bottom
GE 16
Inspiration supine120Smart MA16 x 1.251.375top to bottom
Expiration and Prone120Smart MA2 x 0.625axial - 10 mm spacingtop to bottom
GE 64
Inspiration supine120Smart MA64 x 0.6251.375top to bottom
Expiration and Prone120Smart MA2 x 0.625axial - 10 mm spacingtop to bottom
Comments: - MAX CTDI: 36
- Coach patient prior to scan to achieve MAX expiration during expiratory scan.
- May skip expiratory acquisition if patient has had HRCT in our system in the past 3 yrs.
ReconstructionsPrefered PACS titleplanethickness/incrementalgorithmwindow W/L
Inspiratory supineAX thinAX1.0/1.0Bone+/B801500/-600
Inspiratory supineAX standardAX3.0/3.0Standard/B30350/50
Inspiratory supineAX MIPAX MIP8.0/3.0Standard/B20f smooth1500/-600
ExpiratoryExpiratoryAX1.0/10Bone+/B801500/-600
Inspiratory proneProneAX1.0/10Bone+/B801500/-600
Inspiratory supineCORCOR3.0/3.0Bone+/B801500/-600
Inspiratory supineSAGSAG3.0/3.0Bone+/B801500/-600
Comments:
Pulmonary CT angiogram
Indications and preparation
Indications:- chest pain, SOB, pulmonary embolus
Preparation:- No solids 2 hours prior to scan
Contrasttyperatevolumesaline flush
Intravenous- nonionic5 mL/sec75 mL50 mL
Comments: 18G IV in AC or higher in the arm preferred, at least 20G necessary.
Acquisitionsscan delayrespirationanatomic coverage
post-contrast bolus track PAstop breathingThoracic inlet through lung bases. Scan caudal to cranial.
ParameterskVpmAcollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.61.1bottom to top
Siemens 16120Care Dose 4D16 x 0.750.9bottom to top
GE 64120Auro MA, Smart MA64 x 0.6251.375bottom to top
GE 16120Auro MA, Smart MA16 x 1.251.75bottom to top
Comments: 40% ASIR (GE64)
ReconstructionsPrefered PACS titleplanethickness/incrementalgorithmwindow W/L
AX standardAXIAL1.5/1.5B20f/standard600/100
AX lungAXIAL3.0/3.0B60f/lung1500/-600
SAG lungSAG3.0/3.0B60f/lung1500/-600
COR MIPCOR10.0/3.0B20f/standard670/125
AX MIPAXIAL10.0/3.0B20f/standard670/125
Comments: - MAX CTDI: 50
Double rule-out CT angiogram
Indications and preparation
Indications:- chest pain, SOB; evaluate for PE or aortic dissection
Preparation:- No solids 2 hours prior to scan
ACQUISITION IS THE SAME AS PE CT, WITH ONLY DIFFERENCES NOTED BELOW
Acquisitionsscan delayrespirationanatomic coverage
post-contrast bolus track left atriumstop breathingThoracic inlet through lung bases. Scan cranial to caudal.
Lung cancer screening and low-dose pulmonary nodule follow-up
Indications and preparation
Indications:- Lung cancer screening, pulmonary nodule follow-up
Preparation:- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrastn/ainspiration- above lung apices to 2 cm below costophrenic sulci. Adrenals do not need to be imaged.
Parameters BMI<20kVpmAcollimationpitchdirection
Siemens 12812020128 x 0.61.2top to bottom
Siemens 641202064 x 0.61.2top to bottom
GE 641202564 x 0.6251.375top to bottom
GE 161202516 x 1.251.375top to bottom
Parameters BMI 20-30kVpmAcollimationpitchdirection
Siemens 12812025128 x 0.61.2top to bottom
Siemens 641202564 x 0.61.2top to bottom
GE 641203064 x 0.6251.375top to bottom
GE 161203016 x 1.251.375top to bottom
Parameters BMI>30kVpmAcollimationpitchdirection
Siemens 12812035128 x 0.61.2top to bottom
Siemens 641203564 x 0.61.2top to bottom
GE 641204064 x 0.6251.375top to bottom
GE 161206016 x 1.251.375top to bottom
ReconstructionsPrefered PACS titleplanethickness/incrementalgorithmwindow W/L
AX thinAX1.0/1.0B20f/standard1500/-600
AX MIPAX MIP8.0/3.0B20f/standard1500/-600
AX standardAX5.0/5.0B20f/standard350/50
COR/SAGCOR/SAG3.0/3.0B60f/lung1500/-600
Comments:Max dose: </=3 mSv small, </=5 mSv large, dlp <88, report

CT Urogram - Split Bolus Technique
Indications and preparation
Indications:- hematuria
Preparation:- NPO 2 hours prior
Comments:-Perform split bolus technique on all patients under 30 years of age. If GFR/CrCl is less than 60 than perform standard CT urogram with instituion implemented contrast guidelines. Place patient prone following first injection for better filling of distal ureters and bladder. Place patient back in supine position before scanning the delayed phase.
Contrasttyperatevolumesaline flush
intravenous- nonionic3-4 cc/secSplit Bolus - 120 cc (50 cc initially, wait 7 minutes, then 70 cc)0
oral- water20-30 min prior to scan32 oz 0
Acquisitionsscan delayrespirationanatomic coverage
noncontrast0inspiration- above kidneys through pubic symphysis
delayed post-contrast7-10 min after first injection and 100 sec after 2nd injectioninspiration- above kidneys through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6top to bottom
GE 64120Auto MA, Smart MA64 x 3.75 (non con scan) 64 x 0.625 (post con scan)1.375:1top to bottom
GE 16120Auto MA, Smart MA16 x 1.251.375:1top to bottom
Comments:- scan in standard algorithm WW 350 WL 50 with 40% ASIR (GE 64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
noncontrastentire volumeAX2-3/2-3standardAX noncon
Delayentire volumeAX2-3/2-3standardAX delay
Delaylungs onlyAX2-3/2-3lungAX lung
Delayentire volumeCOR/SAG3.0/3.0standardCOR/SAG
CT Urogram - Standard Technique
Indications and preparation
Indications:- hematuria
Preparation:- NPO 2 hours prior
Comments:-Standard CT urogram protocol for all patients over 30 years of age.  Use insituition established guidelines regarding contrast administration. Place patient prone following imaging of nephrographic phase for better filling of distal ureters and bladder. Place patient back in supine position before scanning the delayed phase.
Contrasttyperatevolumesaline flush
intravenous- nonionic3-4 cc/secPer instituition guidelines0
oral- water20-30 min prior to scan32 oz 0
Acquisitions
noncontrast0inspiration- above kidneys through pubic symphysis
 nephrographic phase80-100 secinspiration- kidneys
delayed post-contrast7 mininspiration- above kidneys through pubic symphysis
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6top to bottom
GE 64120Auto MA, Smart MA64 x 0.625 1.375:1top to bottom
GE 16120Auto MA, Smart MA16 x 1.251.375:1top to bottom
Comments:
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
noncontrastentire volumeAX2-3/2-3standardAX noncon
nephrographic phaseentire volumeAX2-3/2-3standardAX post
delayed post-contrastentire volumeAX2-3/2-3standardAX delay
delayed post-contrastLungs onlyAX2-3/2-3LungAX lung
nephrographic phaseentire volumeSag/Cor3.0/3.0standard COR/SAG post
delayed post-contrastentire volumeSag/Cor3.0/3.0standardCOR/SAG delay
Renal stone CT
Indications and preparation
Indications:Painful hematuria, Flank pain, Back pain, HX of stones
Preparation:None
Contrasttyperatevolumesaline flush
oral / intravenous- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrast0inspirationTop of diaphragm through bladder
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D3.0x/ 128x0.60.6top to bottom
GE 64120Auto MA, Smart MA0.625 x 0.6251.375:1top to bottom
GE 16120Auto MA, Smart MA0.625 x 0.6251.375:1top to bottom
Comments:Scanned in Stnd algorithm WW 350 WL 50 with 40% ASIR
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
entire volumeAX3.0/3.0StndAX standard
lungs onlyAX3.0/3.0LungAX lung
entire volumeCOR/SAG3.0/3.0StndCOR/SAG
Comments:
Renal stone CT - low dose
Indications and preparation
Indications:- painful hematuria, flank pain, back pain, history of stones
Preparation:- none
Contrasttyperatevolumesaline flush
oral / intravenous- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrastn/ainspiration - kidneys through bladder
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D3.0x/ 128x0.60.6top to bottom
GE 64140301.25 x 1.251.375:1top to bottom
GE 16140301.25 x 1.251.375:1top to bottom
Comments:Scanned in Stnd algorithm WW 350 WL 50 with 40% ASIR
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
entire volumeAX5.0/5.0standardAX standard
lungs onlyAX3.0/3.0lungAX lung
entire volumeCOR/SAG3.0/3.0standardCOR/SAG
CT Renal Mass
Indications and preparation
Indications:- Renal Mass
Preparation:- NPO 2 hours prior
Comments:
Contrasttyperatevolumesaline flush
intravenous- nonionic3-4 cc/sec100 cc0
oral- water10 min prior to scan16oz 0
Acquisitionsscan delayrespirationanatomic coverage
noncontrast0inspiration- kidneys
arterial phase25-30 secinspiration- kidneys
nephrographic phase100 secinspiration- kidneys
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D3.0x/ 128x0.60.6top to bottom
GE 64120Auto MA, Smart MA0.625 x 0.625 1.375:1top to bottom
GE 16120Auto MA, Smart MA0.625 x 0.6251.375:1top to bottom
Comments:- scan in standard algorithm WW 350 WL 50 with 40% ASIR (GE 64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
noncontrastentire volumeAX2-3/2-3standardAX noncon
arterial phaseentire volumeAX2-3/2-3standardAX arterial
nephrographic phaselungs onlyAX2-3/2-3lungAX lung
nephrographic phaseentire volumeAX2-3/2-3standardAX post
nephrographic phaseentire volumeCOR/SAG3.0/3.0standardCOR/SAG

Adrenal CT, with contrast
Indications and preparation
Indications:- adrenal mass, cysts
Preparation:- NPO 2 hours prior to scan
Contrasttyperatevolumesaline flush
intravenous- nonionic3.0cc/sec100cc0
oral- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrast0inspiration- above adrenals through kidneys
COMMENT:Check with radiologist to see if post contrast imaging is necessary.
post contrast60 secinspiration- above diaphragm through bifurcation
delayed15 mininspiration- above adrenals through kidneys
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6top to bottom
GE 64120Auto MA/ Smart MA64 x 0.6250.984:1top to bottom
GE 16120Auto MA/ Smart MA16 x 1.251.375:1top to bottom
Comments:- scan in standard algorithm WW 350 WL 50 with 40% ASIR (GE 64)
Reconstructionscoverageplanethickness/incrementalgorithmpreferred PACS title
noncontrast entire volumeAX2.5/2.5standardAX noncon
noncontrastentire volumeCOR3.0/3.0standardCOR noncon
post contrast entire volumeAX2.5/2.5standardAX post
post contrast lungs onlyAX3.0/3.0lungAX lung
post contrast entire volumeCOR/SAG3.0/3.0standardCOR post/SAG post
delay entire volumeAX2.5/2.5standardAX delay
delay entire volumeCOR3.0/3.0standardCOR delay

Pancreatic mass CT
Indications and preparation
Indications:- pancreatic mass, cyst (pancreatitis usually done as routine abdomen CT unless looking for necrosis)
Preparation:- NPO 2 hours prior/ Water for oral contrast when evaluating mass, positive oral contrast when evaluating pancreatitis.
Contrasttyperatevolumesaline flush
intravenous- nonionic4-5cc/secper protocol.0
oral- water: 32oz 1 hour prior; 32oz on arrival; 10oz right before scan32oz and 10ozn/a
Acquisitionsscan delayrespirationanatomic coverage
noncontrast0inspirationEntire Pancreas
initial post-contrastSmart Prep pancreas (about 30 sec)inspirationSmall FOV pancreas
portal venous post-contrast60-70 secinspirationdiapragm to bifurcation if abdomen ordered, otherwise abdomen and pelvis.
ParameterskVpmAscollimationpitchdirection
Siemens 128Care kVCare Dose 4D128 x 0.60.6top to bottom
GE 64120Auto MA/ Smart MA64 x 0.6250.984:1top to bottom
GE 16120Auto MA/ Smart MA16 x 1.251.375:1top to bottom
Comments:- scan in standard algorithm WW 350 WL 50 with 40% ASIR (GE 64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/Lpreferred PACS title
noncontrast entire volumeAX2.5/2.5standard350/50AX noncon
noncontrast entire volumeCOR3.0/3.0standard350/50COR noncon
post contrast entire volumeAX2.5/2.5standard350/50AX post
post contrast lungs onlyAX3.0/3.0lung1500/-600AX lung
post contrast entire volumeCOR/SAG3.0/3.0standard350/50COR post/SAG post
delay entire volumeAX2.5/2.5standard350/50AX delay
delay entire volumeCOR3.0/3.0standard350/50COR delay
Comments:Coronal and Sagittal MIPS of the arterial phase can be performed if a dedicated CTA is ordered for cancer staging.

C-spine CT, without contrast
Indications and preparation
Indications:- fracture, MVA, post-myleogram, neck pain, trauma
Preparation:- none
Contrasttyperatevolumesaline flush
- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- above C-1 through mid T-1
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 161202800.750.65Recon 1-B60s
Siemens 414022010.75Recon 1-B60s
GE 64120Auto MA0.625 x 0.6250.516:1Top to Bottom
GE 16120Auto MA2.5 x 2.50.562.1Top to Bottom
Comments:- scan in bone algorithm WW 2000 WL 200 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64Entire ScanAX2.5/2.5Stnd500/90
GE 64, GE 16 Entire ScanAX2.5/2.5Bone Plus2000/200
GE 64, GE 16 Entire ScanCOR/SAG3.0/3.0Bone 2000/200
Siemens 16 and 4Recon 2kernel B203.0/3.0Abdomen
Recon 3kernel B60s1.25/0.6Bone
Comments:- Siemens sagittal (angled to C4-5 disc space) and coronal reformats 3.0x3.0 off of recon 3
T-spine
Indications and preparation
Indications:- fracture, MVA, post-myleogram, back pain, trauma
Preparation:- none
Contrasttyperatevolumesaline flush
- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- above T-1 through mid L-1
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 161202800.750.65Recon 1-B60s
Siemens 414025010.75Recon 1-B60s
GE 64140Auto0.625 x 0.6250.516:1Top to Bottom
GE 16140Auto2.5 x 2.50.562:1Top to Bottom
Comments:
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64Entire ScanAX2.5/2.5Stnd500/90
GE 64, GE 16 Entire ScanAX2.5/2.5Bone Plus2000/200
GE 64, GE 16 Entire ScanCOR/SAG3.0/3.0Bone 2000/200
Siemens 16 and 4Recon 2kernel B203.0/3.0Abdomen
Recon 3kernel B60s1.0/0.6Bone
Comments:- scan in bone algorithm WW 2000 WL 200 with 40% ASIR (GE64)
- Siemens - sagittal (angled to C4-5 disc space) and coronal reformats 3.0x3.0 off of recon 3.
L-spine
Indications and preparation
Indications:- fracture, MVA, post-myleogram, back pain, trauma
Preparation:- none
Contrasttyperatevolumesaline flush
- none
Acquisitionsscan delayrespirationanatomic coverage
noncontrastn/an/a- mid T-12 through S-1
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 161202800.750.65Recon 1-B60s
Siemens 414025010.75Recon 1-B60s
GE 64140Auto0.625 x 0.6250.516:1Top to Bottom
GE 16140Auto2.5 x 2.50.562:1Top to Bottom
Comments:- scan in bone algorithm WW 2000 WL 200 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64Entire ScanAX2.5/2.5Stnd500/90
GE 64, GE 16 Entire ScanAX2.5/2.5Bone Plus2000/200
GE 64, GE 16 Entire ScanCOR/SAG3.0/3.0Bone 2000/200
Siemens 16 and 4Recon 2kernel B203.0/3.0Abdomen
Recon 3kernel B60s1.0/0.6Bone
Comments:- Siemens - sagittal and coronal reformats 3.0x3.0 off of recon 3.

Upper Extremity CT, without contrast
Indications and preparation
Indications:- pain, fracture, trauma, abnormal X-Ray
Contrasttyperatevolumesaline flush
- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- start above joint and end below joint
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 16
GE 64120Auto 0.625 x 0.6250.531:1top to bottom
GE 16120Auto 2.5 x 2.50.938:1top to bottom
Comments:- scan in bone algorithm WW 2000 WL 200 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5standard400/50
GE 64, GE 16entire volumeAX2.5/2.5bone plus2000/200
GE 64, GE 16entire volumeCOR/SAG2.0/2.0bone2000/200
Upper Extremity CT, with contrast
Indications and preparation
Indications:- abscess, redness and/or swelling of affected extremity, mass
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec100cc0
Acquisitionscan delayrespirationanatomic coverage
post-contrast90sn/a- start above joint and end below joint
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 16
GE 64120Auto 0.625 x 0.6250.531:1top to bottom
GE 16120Auto 2.5 x 2.50.938:1top to bottom
Comments:- scan in bone algorithm WW 2000 WL 200 with 40% ASIR (GE64)
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5standard400/50
GE 64, GE 16entire volumeAX2.5/2.5bone plus2000/200
GE 64, GE 16entire volumeCOR/SAG2.0/2.0bone2000/200
Lower Extremity CT, without contrast
Indications and preparation
Indications:- pain, fracture, trauma, abnormal X-Ray
Contrasttyperatevolumesaline flush
- none
Acquisitionscan delayrespirationanatomic coverage
noncontrastn/an/a- start above joint and end below joint
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 16
GE 64120Auto 0.625 x 0.6250.531:1top to bottom
GE 16120Auto 2.5 x 2.50.938:1top to bottom
Comments:- scan in bone algorithm WW 2000 WL 200 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5standard400/50
GE 64, GE 16entire volumeAX2.5/2.5bone plus2000/200
GE 64, GE 16entire volumeCOR/SAG2.0/2.0bone2000/200
Lower Extremity CT, with contrast
Indications and preparation
Indications:- abscess, redness and/or swelling of affected extremity, mass
Contrasttyperatevolumesaline flush
intravenous- nonionic2.5cc/sec100cc0
Acquisitionscan delayrespirationanatomic coverage
post-contrast90sn/a- start above joint and end below joint
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 16
GE 64120Auto 0.625 x 0.6250.531:1top to bottom
GE 16120Auto 2.5 x 2.50.938:1top to bottom
Comments:- scan in bone algorithm WW 2000 WL 200 with 40% ASIR (GE64)
Reconstructioncoverageplanethickness/incrementalgorithmwindow W/L
GE 64entire volumeAX2.5/2.5standard400/50
GE 64, GE 16entire volumeAX2.5/2.5bone plus2000/200
GE 64, GE 16entire volumeCOR/SAG2.0/2.0bone2000/200
Lower extremity CT angiogram
Indications and preparation
Indications:Gourley/Cockerill to complete ....
Preparation:
Contrasttyperatevolumesaline flush
Intravenous
Comments:
Acquisitionsscan delayrespirationanatomic coverage
post-contrast
ParameterskVpmAscollimationpitchdirection
Siemens 128
Siemens 16
GE 64
GE 16
Comments:
Reconstructionscoverageplanethickness/incrementalgorithmwindow W/L
Siemens
GE
Comments: