Protocols

Question 1

Indications:
Suspected abdominal mass
Tumor staging
Abscess
Undetermined pain

Answer 1

Routine abdomen pelvis

Question 2

Contrast
IV - 125ml at 3ml/s
Oral - 625ml prior, 225ml just before

Scan delay
65 sec

Answer 2

Routine abdomen pelvis

Question 3

Start: just above diaphragm
End: just below symphysis pubis

Answer 3

Routine abdomen pelvis
Appendicitis/diverticulitis
Mesenteric
Enterography

Question 4

Start: just above diaphragm
End: iliac crest

Answer 4

Abdomen ONLY
Biphasic liver
Biphasic pancreas

Question 5

Window settings:
Soft tissue
Liver
Lung

Answer 5

Routine abdomen pelvis

Question 6

Indications:
Known or suspected renal calculi
Known or suspected uretral calculi

Answer 6

Renal stone protocol

Question 7

Contrast:
None

Scan delay:
None

Answer 7

Renal stone protocol

Question 8

Start: 2cm above kidney
End: symphysis pubis

Answer 8

Renal stone

Question 9

Indication:
Suspected or known renal mass

Answer 9

Renal mass - biphasic

Question 10

Contrast:
Unenhanced - none (no scan delay)
Delayed - IV - 100mL at 3 mL/s

Scan delay: 150sec

Answer 10

Biphasic Renal mass

Question 11

Start: 2cm above kidney
End: 2cm below kidney

Answer 11

Biphasic renal mass

Question 12

Indication:
Hematuria
Known or suspected urothelial disease (transitional cell carcinoma)

Answer 12

CT urogram

Question 13

Contrast:
Single bolus injection
100-150ml at 2-3ml/s
*2 scans - nephrographic, excretory

Answer 13

CT urogram single bolus injection

Question 14

Contrast:
Split bolus injection
*divide 100-150ml into 2 injections
*delay between scans (3-15 min)
1st injection = excretory
2nd injection = nephrographic

Answer 14

CT urogram split bolus injection

Question 15

What is the start and end for a unenhanced CT urogram?

Answer 15

Start: 2cm above kidney
End: just below symphysis pubis

Question 16

Excretory phase
Contrast:
125ml at 3 ml/s (200ml saline)
Scan delay: 600s

Answer 16

CT urogram excretory phase

Question 17

What is the start and end for the excretory phase of a CT urogram?

Answer 17

Start: just above kidneys
End: at symphysis pubis

Question 18

Indications:
Hypervasculat hepatic tumor

Answer 18

Biphasic liver protocol

Question 19

Contrast:
IV - 125ml at 4ml/s
Oral -
450ml (30 min prior)
225ml (10 min prior)
225ml (immediately before)

Scan delay:
35 sec (arterial liver)
40 sec (arterial pancreas)

Answer 19

Arterial phase for liver and pancreas

Question 20

What phase of the liver only uses soft tissue window?

Answer 20

Venous

Question 21

Start: just above diaphragm
End: iliac crest

Answer 21

Biphasic liver
Biphasic pancreas

Question 22

Indication:
Pancreatitis
Pancreatic tumors

Answer 22

Biphasic pancreas tumor

Question 23

Indication:
Characterization of adrenal mass
Adenoma
Metateses

Answer 23

Adrenal gland

Question 24

Start: just above diaphragm
End: just below kidneys

Answer 24

Adrenal gland

Question 25

Contrast: IV - 125ml at 3ml/s Oral - 675ml 60 min prior 225ml just prior

Answer 25

Appendicitis diverticulitis

Question 26

Indications: Ischemic bowel Bleeding Tumor resection

Answer 26

Mesenteric biphasic

Question 27

Indications: Crohn’s disease Inflamed bowel

Answer 27

Enterographic

Question 28

Contrast: IV - 125ml at 4ml/s Oral - 450ml 60 min prior 450ml 30 min prior 225ml 20 min prior 225ml just prior Scan delay: arterial Mesenteric - Bolus triggering (celiac artery) Enterographic - 65 sec

Answer 28

Mesenteric and Enterographic arterial phase