Abdominal Imaging Flashcards Preview

CLASP: Radiology and Anatomy > Abdominal Imaging > Flashcards

Flashcards in Abdominal Imaging Deck (25)
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1

modalities used to image the abdomen

1. XR
2. USS
3. CT
4. MRI

2

what is supine AXR used for?

bowel obstruction

3

what is erect CXR used for?

hollow viscus perforation

4

adverse of XR

ionising radiation
low sensitivity

5

benefits of USS

easy
safe
clear visualisation

6

negatives of USS

operator and patient dependent
immobile patients
obese patients

7

adverse of CT

radiation exposure
contrast-induced nephropathy
contrast allergy risks
difficulty lying flat

8

adverse of MRI

contraindicated
claustrophobic

9

DD for pain/tenderness in RIF

acute appendicitis
renal colic
tubo-ovarian pathology

10

investigation for appendicitis

USS
CT if inconculsive

11

what should be seen in appendicitis?

aperistalsis
non-compressible
dilated appendix with wall thickening

12

first line investigation for renal colic

non-contrast CT

13

LIF DD

diverticulitis
acute cholecystitis
pancreatitis
perforation

14

diagnosis of diverticulitis

CT with IV contrast
CXR for perforation

15

diagnosis of cholecystitis

USS
MRI if biliary tree dilatation (MRCP is T2 weighted)

16

diagnosis of pancreatitis

amylase
CT for complications

17

diagnosis of perforation

CT

18

abdominal pain/ distension DD

small bowel obstruction
large bowel obstruction
ascites

19

diagnosis of small bowel obstruction

XR
CT is best

20

diagnosis of large bowel obstruction

XR
CT is best

21

DD of sudden pain and shock

bowel ischaemia
peforation
pancreatitis
calculus
leaking AAA
ruptured ectopic pregnancy

22

diagnosis of bowel ischaemia

biphasic CT

23

what is plain XR first line for?

obstruction
perforation

24

what is USS first line for?

RUQ/RIF pain (cholecystitis and appendicitis)

25

what is CT first line for?

acute abdominal pain