GIT Imaging

Question 1

If the patient is unable to stand what is the alternative view to see the air/fluid level

Answer 1

Lateral view

Question 2

An abdominal x ray view used to look for free air

Answer 2

Left decubitus

Question 3

Small bowel characteristics

Answer 3

• less than 3 cm wide.
• central.
• only seen if it contains gas.
• valvula conniventes.

Question 4

Large bowel characteristics

Answer 4

• less than 6 cm wide, cecum and sigmoid up to 9 cm.
• Laterally.
• Haustrations.
• feces.

Question 5

If only a segment of bowel is dilated this is called

Answer 5

Sentinel loop

Question 6

Small pockets of gas within a fluid filled small bowel is called?

Answer 6

String of beads sign

Question 7

Step ladder appearance is seen in case of?

Answer 7

Small bowel obstruction

Question 8

Most common cause of bowel obstruction in industrial countries

Answer 8

Adhesions

Question 9

Coffee bean appearance is classical for?

Answer 9

Sigmoid volvulus

Question 10

When air fills the peritoneal cavity, both sides of the bowel wall will be outlined by air. This sign is?

Answer 10

Rigler sign

Question 11

Football sign is seen in?

Answer 11

Massively air filled peritoneum

Question 12

Air accumulation beneath the central tendon of the diaphragm. This sign is?

Answer 12

Cupola sign

Question 13

Single contrast study

Answer 13

Barium is used alone

Question 14

Double contrast study

Answer 14

Barium and air are used

Question 15

When does gastrografin is used?

Answer 15

When perforation of the upper GI tract is suspected

Question 16

Esophagogram indications

Answer 16

• dysphagia.
• motility.
• reflux.
• post op for leaks.

Question 17

“Shouldering” seen in the esophagogram is a sign of?

Answer 17

Malignancy

Question 18

Classically used to asses for gastric ulcers

Answer 18

Barium meal (also for detecting gastric carcinoma or gastroparesis)

Question 19

Small bowel enema indications

Answer 19

Crohn’s disease

Question 20

Contraindications of barium enema

Answer 20

• toxic megacolon.
• pseudomembranous colitis.
• endoscopic intervention (within 7 days of procedure).
• partial obstruction.
• perforation.

Question 21

Can be used to asses diverticulosis

Answer 21

Barium enema

Question 22

Loss of haustrations and lead pipe appearance is seen in?

Answer 22

UC

Question 23

Apple core appearance is a sign of ?

Answer 23

Colon cancer

Question 24

Modality of choice to asses gallbladder

Answer 24

US

Question 25

Hepatic cyst is seen in the US as?

Answer 25

Anechoic with posteriorly acoustic enhancement

Question 26

Best for detecting CBD stones

Answer 26

MRCP

Question 27

Nuclear scan asses?

Answer 27

• gastric bleeding.
• GI bleeding.
• Neuroendocrine tumor.

Question 28

Best for GI bleeding?

• Radionuclide scanning.
• CT angiogram.
• Catheter angiogram.

Answer 28

C