Gastrointestinal Imaging (CTBC 17)--Enterography, STN

Question 1

CT Enterography: “Entero”

Answer 1

Refers to Bowels

Question 2

CT Enterography: Purpose

Answer 2

Eval bowels in greater detail than routine Abd/Pelv

Question 3

CT Enterography: Indications

Answer 3

Crohn’s
Ulcerative Colitis
Other Sm Bowel Ds

Question 4

CT Enterography: Scan Type

Answer 4

Helical

Question 5

CT Enterography: Slice Parameters

Answer 5

2.5mm w matching interval

Question 6

CT Enterography: Gantry Tilt

Answer 6

None

Question 7

CT Enterography: Oral Contrast

Answer 7

1500-2000 mL of water 40-60 min prior

Question 8

CT Enterography: Goal of oral contrast

Answer 8

Fill/Distend Bowels

Question 9

CT Enterography: (IV) Contrast
Volume
Rate
Timing

Answer 9

100+ mL
4+ mL/s
60s scan delay

Question 10

CT Enterography: Algorithm

Answer 10

Standard 400/40

Question 11

CT Enterography: Medications

Answer 11

Metoclopramide (Reglan)
Glucagon

Question 12

CT Enterography: Metoclopramide (Reglan) utility

Answer 12

stimulate emptying of stomach so 2L of water will empty into bowel

Question 13

CT Enterography: Utility of Glucagon

Answer 13

Temporarily stop peristalsis: decrease bowel motion; enhance bowel visibility

Question 14

CT STN: Purpose

Answer 14

Identify most any non-arterial/non-bone neck pathology

Question 15

CT STN: Indications (4+)

Answer 15

Mass
Swelling
Abscess
Cancer
Etc

Question 16

CT STN: Scan Type

Answer 16

Helical

Question 17

CT STN: Slice Parameters

Answer 17

2.5 w matching interval

Question 18

CT STN: Gantry Tilt

Answer 18

None

Question 19

CT STN: Contrast
Volume
Rate
Timing

Answer 19

100 mL
3 mL/s
Scan Delay Varies

Question 20

CT STN: Algorithm

Answer 20

Standard 400/40

Question 21

CT STN: Utility of Lung Algorithm

Answer 21

Visualized portions of lung

Question 22

CT STN: FOV

Answer 22

Orbital Roof through Carina