UNMH Body CT Protocols

Kidney: CTA 3D - 64

 (workup for transplant donor,  3D for renal mass or renal collecting system lesion)


 

Kidneys
C-

Kidneys
C+ arterial

Kidneys
C+
Parenchymal

KidneysC+
Excretion

KV/effective mAs

120/190

120/210

120/210

120/210

Detector Configuration

24x1.2 mm

64 x 0.6

24x1.2 mm

24x1.2 mm

Pitch factor

1.2

1.2

1.2

1.2

Scan Rotation time

0.5 sec

0.5 sec

0.5 sec

0.5 sec

Slice Collimation      (mm) 

1.2 mm

1.2 mm

1.2 mm

1.2 mm

Slice Increment  (mm)

3.0

3.0 & 0.5   (2)

3.0

3.0

Kernel

B30s

B30f & B20f

B30f

B30f

Feed/rotation

 34.6

23

34.6

34.6

Approximate Coverage    (mm) 

140 Kidneys

160 kidneys
2cm above & 2cm below

Kidneys + Abdomen 220


140

Approximate Time             (sec) 

5 sec

8 sec

8 sec

12 sec

Injection  (rate/time/volume) 

N/A

4-5 cc/sec/100cc
70cc saline

 

 

Series in PACS  (7 total)                cranial-caudad axials

1, 3.0 mm

3, B20f 1.2 mm Axial,  and axial & coronal 4mm MIPs from B20f

2, B30f axial and coronal

1, B30f axial

Injection to scan delay (sec)

N/A

Peak

75

2.5 minutes

Intergroup delay       (sec) 

N/A

N/A

N/A

N/A

Oral contrast 

NONE

NONE

NONE

NONE

18g angiocath; NO ORAL CONTRAST—make sure this is indicated on face of requisition to avoid error
1Use automatic  sensing  (Care Bolus) to determine peak 
2One breathold for each phase through ENTIRE bilat kidneys.
Send all images to PACS. 
Be sure to include ALL of kidneys on all phases.
 Arterial phase (1.2 x 1.2 mm.)
 Parenchymal phase of kidneys (2.4 x 2.4 mm)
 Excretion phase of kidneys (2.4 x.2.4 mm)

Abdominal CT Angiography

Indications: Suspected Bowel Ischemia/ Endograft follow-up/ Liver Preop Resection
NEEDS BUN/Cr CHECK
NO PRE-PROCEDURAL ORAL CONTRAST

#1  Non Contrast Acquisition

                                                    64 slice scanner                               16 slice scanner
Range:                                         Top diaphragm to                               Top diaphragm to
                                                     pubic symphysis                                 pubic symphysis                                                                       
KV/effective mAs                                 120/190                                    120/200/.5        
Rotation time                                         0.5 sec                                      0.5
Acquisition                                            24x1.2 mm                                16 x 1.5
Slice collimation                                     1.2 mm                                     1.5
Slice width                                            3.0mm                                       3.0
Feed/rotation                                         34.6                                          24
Pitch factor                                            1.2                                           
Increment                                              3.0 mm                                      3.0 mm                       
Kernel                                                   B30s

#2  Arterial Phase Acquisition

CONRAST: Intravenous contrast = 100cc followed by 40 cc saline both injected at 4 cc\sec.
Oral contrast = Water 300-500 cc, including 200cc orally on table

Range:                                            Top of diaphragm                                  Top of diaphragm
                                                            to iliac crest                                         to iliac crest

KV/effective mAs                                 120/210                                               120/200
Rotation time                                         0.5 sec                                                  0.5sec
Acquisition                                            64 x 0.6 mm                                         16 x 0.75mm
Slice collimation                                     0.6 mm                                                 0.75
Slice width                                            3.0 mm, 2nd recon 0.75mm                  3.0mm, 2nd
                                                                                                                         recon 1.0 mm
Feed/rotation                                         23                                                        12
Pitch factor                                            1.2                               
Increment                                              3.0 mm 2nd recon 0.5mm                     3.0 mm, 2nd  
                                                                                                                         recon 1.0
Kernel                                                   B30f, 2nd recon B20f
Post-Processing & filming                                 Sagital  and Coronal
                                                            4mm thick MIPs
                                                            from second recon

#3 Venous Phase Acquisition: 75 second delay

Range:                                             Top of diaphragm to                         Top of diaphragm to
                                                          pubic symphysis                              pubic symphysis

KV/effective mAs                                  120/210                                            120/200
Rotation time                                         0.5 sec                                               0.5
Acquisition                                            24 x 1.2 mm                                       16x 1.5
Slice collimation                                     0.6 mm                                              1.5
Slice width                                             3.0 mm, 2nd recon 1.0mm                  3.0 mm
Feed/rotation                                         34.6                                                   12
Pitch factor                                            1.2
Increment                                              3.0 mm                                               3.0 mm
Kernel                                                   B30f, 2nd recon B20f

        18 Gauge angiocath in antecubital vein.

 

Peripheral Run-Off 64 Detector Scanner Only

NO ORAL CONTRAST ORDER FOR HOME PRIOR TO PROCEDURE

Range:                                                                Umbilicus to feet
                                                                          Use 1024 or 1540 topogram
Intravenous Contrast                                          150 cc at 3.5 cc second Ultravist 300
                                                                          followed by 60 cc saline
Oral Contrast                                                     None
Care Bolus                                                         Image at distal abdominal aorta.
                                                                          Trigger at 150 HU, add 10 second delay

After completion of first scan                                                                                      
IMMEDIATELY return to knees and                                                                             
scan to feet using the same protocol
(Protocol this before performing
first acquisition)

KV/effective mAs                                              120/190
Rotation time                                                      0.33 sec.
Acquisition                                                         64 x.06
Slice collimation                                                  0.6mm
Slice width                                                          5 mm, 2nd reconstruction 1.0
Feed/rotation                                                     15.4
Pitch factor                                                         8.4
Increment                                                           5 mm, 2nd reconstruction 0.7 mm
Kernel B30f
Post-Processing                                                Coronal and sagittal
                                                                         4mm thick MIPs

Kidney: CTA 3D - 64

 (workup for transplant donor,  3D for renal mass or renal collecting system lesion)


 

Kidneys
C-

Kidneys
C+ arterial

Kidneys
C+
Parenchymal

KidneysC+
Excretion

KV/effective mAs

120/190

120/210

120/210

120/210

Detector Configuration

24x1.2 mm

64 x 0.6

24x1.2 mm

24x1.2 mm

Pitch factor

1.2

1.2

1.2

1.2

Scan Rotation time

0.5 sec

0.5 sec

0.5 sec

0.5 sec

Slice Collimation      (mm) 

1.2 mm

1.2 mm

1.2 mm

1.2 mm

Slice Increment  (mm)

3.0

3.0 & 0.5   (2)

3.0

3.0

Kernel

B30s

B30f & B20f

B30f

B30f

Feed/rotation

 34.6

23

34.6

34.6

Approximate Coverage    (mm) 

140 Kidneys

160 kidneys
2cm above & 2cm below

Kidneys + Abdomen 220


140

Approximate Time             (sec) 

5 sec

8 sec

8 sec

12 sec

Injection  (rate/time/volume) 

N/A

4-5 cc/sec/100cc
70cc saline

 

 

Series in PACS  (7 total)                cranial-caudad axials

1, 3.0 mm

3, B20f 1.2 mm Axial,  and axial & coronal 4mm MIPs from B20f

2, B30f axial and coronal

1, B30f axial

Injection to scan delay (sec)

N/A

Peak

75

2.5 minutes

Intergroup delay       (sec) 

N/A

N/A

N/A

N/A

Oral contrast 

NONE

NONE

NONE

NONE

18g angiocath; NO ORAL CONTRAST—make sure this is indicated on face of requisition to avoid error
1Use automatic  sensing  (Care Bolus) to determine peak 
2One breathold for each phase through ENTIRE bilat kidneys.
Send all images to PACS. 
Be sure to include ALL of kidneys on all phases.
 Arterial phase (1.2 x 1.2 mm.)
 Parenchymal phase of kidneys (2.4 x 2.4 mm)
 Excretion phase of kidneys (2.4 x.2.4 mm)

Abdominal CT Angiography

Indications: Suspected Bowel Ischemia/ Endograft follow-up/ Liver Preop Resection
NEEDS BUN/Cr CHECK
NO PRE-PROCEDURAL ORAL CONTRAST

#1  Non Contrast Acquisition

                                                    64 slice scanner                               16 slice scanner
Range:                                         Top diaphragm to                               Top diaphragm to
                                                     pubic symphysis                                 pubic symphysis                                                                       
KV/effective mAs                                 120/190                                    120/200/.5        
Rotation time                                         0.5 sec                                      0.5
Acquisition                                            24x1.2 mm                                16 x 1.5
Slice collimation                                     1.2 mm                                     1.5
Slice width                                            3.0mm                                       3.0
Feed/rotation                                         34.6                                          24
Pitch factor                                            1.2                                           
Increment                                              3.0 mm                                      3.0 mm                       
Kernel                                                   B30s

#2  Arterial Phase Acquisition

CONRAST: Intravenous contrast = 100cc followed by 40 cc saline both injected at 4 cc\sec.
Oral contrast = Water 300-500 cc, including 200cc orally on table

Range:                                            Top of diaphragm                                  Top of diaphragm
                                                            to iliac crest                                         to iliac crest

KV/effective mAs                                 120/210                                               120/200
Rotation time                                         0.5 sec                                                  0.5sec
Acquisition                                            64 x 0.6 mm                                         16 x 0.75mm
Slice collimation                                     0.6 mm                                                 0.75
Slice width                                            3.0 mm, 2nd recon 0.75mm                  3.0mm, 2nd
                                                                                                                         recon 1.0 mm
Feed/rotation                                         23                                                        12
Pitch factor                                            1.2                               
Increment                                              3.0 mm 2nd recon 0.5mm                     3.0 mm, 2nd  
                                                                                                                         recon 1.0
Kernel                                                   B30f, 2nd recon B20f
Post-Processing & filming                                 Sagital  and Coronal
                                                            4mm thick MIPs
                                                            from second recon

#3 Venous Phase Acquisition: 75 second delay

Range:                                             Top of diaphragm to                         Top of diaphragm to
                                                          pubic symphysis                              pubic symphysis

KV/effective mAs                                  120/210                                            120/200
Rotation time                                         0.5 sec                                               0.5
Acquisition                                            24 x 1.2 mm                                       16x 1.5
Slice collimation                                     0.6 mm                                              1.5
Slice width                                             3.0 mm, 2nd recon 1.0mm                  3.0 mm
Feed/rotation                                         34.6                                                   12
Pitch factor                                            1.2
Increment                                              3.0 mm                                               3.0 mm
Kernel                                                   B30f, 2nd recon B20f

        18 Gauge angiocath in antecubital vein.

 

Peripheral Run-Off 64 Detector Scanner Only

NO ORAL CONTRAST ORDER FOR HOME PRIOR TO PROCEDURE

Range:                                                                Umbilicus to feet
                                                                          Use 1024 or 1540 topogram
Intravenous Contrast                                          150 cc at 3.5 cc second Ultravist 300
                                                                          followed by 60 cc saline
Oral Contrast                                                     None
Care Bolus                                                         Image at distal abdominal aorta.
                                                                          Trigger at 150 HU, add 10 second delay

After completion of first scan                                                                                      
IMMEDIATELY return to knees and                                                                             
scan to feet using the same protocol
(Protocol this before performing
first acquisition)

KV/effective mAs                                              120/190
Rotation time                                                      0.33 sec.
Acquisition                                                         64 x.06
Slice collimation                                                  0.6mm
Slice width                                                          5 mm, 2nd reconstruction 1.0
Feed/rotation                                                     15.4
Pitch factor                                                         8.4
Increment                                                           5 mm, 2nd reconstruction 0.7 mm
Kernel B30f
Post-Processing                                                Coronal and sagittal
                                                                         4mm thick MIPs

Kidney: CTA 3D - 64

 (workup for transplant donor,  3D for renal mass or renal collecting system lesion)


 

Kidneys
C-

Kidneys
C+ arterial

Kidneys
C+
Parenchymal

KidneysC+
Excretion

KV/effective mAs

120/190

120/210

120/210

120/210

Detector Configuration

24x1.2 mm

64 x 0.6

24x1.2 mm

24x1.2 mm

Pitch factor

1.2

1.2

1.2

1.2

Scan Rotation time

0.5 sec

0.5 sec

0.5 sec

0.5 sec

Slice Collimation      (mm) 

1.2 mm

1.2 mm

1.2 mm

1.2 mm

Slice Increment  (mm)

3.0

3.0 & 0.5   (2)

3.0

3.0

Kernel

B30s

B30f & B20f

B30f

B30f

Feed/rotation

 34.6

23

34.6

34.6

Approximate Coverage    (mm) 

140 Kidneys

160 kidneys
2cm above & 2cm below

Kidneys + Abdomen 220


140

Approximate Time             (sec) 

5 sec

8 sec

8 sec

12 sec

Injection  (rate/time/volume) 

N/A

4-5 cc/sec/100cc
70cc saline

 

 

Series in PACS  (7 total)                cranial-caudad axials

1, 3.0 mm

3, B20f 1.2 mm Axial,  and axial & coronal 4mm MIPs from B20f

2, B30f axial and coronal

1, B30f axial

Injection to scan delay (sec)

N/A

Peak

75

2.5 minutes

Intergroup delay       (sec) 

N/A

N/A

N/A

N/A

Oral contrast 

NONE

NONE

NONE

NONE

18g angiocath; NO ORAL CONTRAST—make sure this is indicated on face of requisition to avoid error
1Use automatic  sensing  (Care Bolus) to determine peak 
2One breathold for each phase through ENTIRE bilat kidneys.
Send all images to PACS. 
Be sure to include ALL of kidneys on all phases.
 Arterial phase (1.2 x 1.2 mm.)
 Parenchymal phase of kidneys (2.4 x 2.4 mm)
 Excretion phase of kidneys (2.4 x.2.4 mm)

Abdominal CT Angiography

Indications: Suspected Bowel Ischemia/ Endograft follow-up/ Liver Preop Resection
NEEDS BUN/Cr CHECK
NO PRE-PROCEDURAL ORAL CONTRAST

#1  Non Contrast Acquisition

                                                    64 slice scanner                               16 slice scanner
Range:                                         Top diaphragm to                               Top diaphragm to
                                                     pubic symphysis                                 pubic symphysis                                                                       
KV/effective mAs                                 120/190                                    120/200/.5        
Rotation time                                         0.5 sec                                      0.5
Acquisition                                            24x1.2 mm                                16 x 1.5
Slice collimation                                     1.2 mm                                     1.5
Slice width                                            3.0mm                                       3.0
Feed/rotation                                         34.6                                          24
Pitch factor                                            1.2                                           
Increment                                              3.0 mm                                      3.0 mm                       
Kernel                                                   B30s

#2  Arterial Phase Acquisition

CONRAST: Intravenous contrast = 100cc followed by 40 cc saline both injected at 4 cc\sec.
Oral contrast = Water 300-500 cc, including 200cc orally on table

Range:                                            Top of diaphragm                                  Top of diaphragm
                                                            to iliac crest                                         to iliac crest

KV/effective mAs                                 120/210                                               120/200
Rotation time                                         0.5 sec                                                  0.5sec
Acquisition                                            64 x 0.6 mm                                         16 x 0.75mm
Slice collimation                                     0.6 mm                                                 0.75
Slice width                                            3.0 mm, 2nd recon 0.75mm                  3.0mm, 2nd
                                                                                                                         recon 1.0 mm
Feed/rotation                                         23                                                        12
Pitch factor                                            1.2                               
Increment                                              3.0 mm 2nd recon 0.5mm                     3.0 mm, 2nd  
                                                                                                                         recon 1.0
Kernel                                                   B30f, 2nd recon B20f
Post-Processing & filming                                 Sagital  and Coronal
                                                            4mm thick MIPs
                                                            from second recon

#3 Venous Phase Acquisition: 75 second delay

Range:                                             Top of diaphragm to                         Top of diaphragm to
                                                          pubic symphysis                              pubic symphysis

KV/effective mAs                                  120/210                                            120/200
Rotation time                                         0.5 sec                                               0.5
Acquisition                                            24 x 1.2 mm                                       16x 1.5
Slice collimation                                     0.6 mm                                              1.5
Slice width                                             3.0 mm, 2nd recon 1.0mm                  3.0 mm
Feed/rotation                                         34.6                                                   12
Pitch factor                                            1.2
Increment                                              3.0 mm                                               3.0 mm
Kernel                                                   B30f, 2nd recon B20f

        18 Gauge angiocath in antecubital vein.

 

Peripheral Run-Off 64 Detector Scanner Only

NO ORAL CONTRAST ORDER FOR HOME PRIOR TO PROCEDURE

Range:                                                                Umbilicus to feet
                                                                          Use 1024 or 1540 topogram
Intravenous Contrast                                          150 cc at 3.5 cc second Ultravist 300
                                                                          followed by 60 cc saline
Oral Contrast                                                     None
Care Bolus                                                         Image at distal abdominal aorta.
                                                                          Trigger at 150 HU, add 10 second delay

After completion of first scan                                                                                      
IMMEDIATELY return to knees and                                                                             
scan to feet using the same protocol
(Protocol this before performing
first acquisition)

KV/effective mAs                                              120/190
Rotation time                                                      0.33 sec.
Acquisition                                                         64 x.06
Slice collimation                                                  0.6mm
Slice width                                                          5 mm, 2nd reconstruction 1.0
Feed/rotation                                                     15.4
Pitch factor                                                         8.4
Increment                                                           5 mm, 2nd reconstruction 0.7 mm
Kernel B30f
Post-Processing                                                Coronal and sagittal
                                                                         4mm thick MIPs