10. GI Imaging Flashcards
1
Q
Why would you request an AXR?
A
Acute abdominal pain - small or large bowel obstruction - acute exacerbation of IBD (toxic megacolon with perforation) - renal colic Not really used much anymore though
2
Q
What are the permanent folds in the small bowel?
A
Valvulae conniventes- cross entire wall, thin
3
Q
What is a pneumoperitoneum?
A
Perforation of viscera leading to gas in peritoneal cavity
4
Q
What can cause pneumoperitoneum?
A
Perforation of:
- peptic ulcer
- diverticular
- tumour
- obstruction
- trauma
- iatrogenic (laparoscopic surgery)
5
Q
What would be seen at T12 level in CT scan?
A
Aortic hiatus of diaphragm
6
Q
What can be seen at L1 level in CT scan?
A
Fundus of gallbladder Pylorus of stomach Neck of pancreas Superior mesenteric artery origin Hilum of kidneys
7
Q
What can be seen at L3 level in CT scan?
A
Umbilicus
Inferior mesenteric artery
8
Q
What can be seen at the L4 level in CT scan?
A
Iliac crest
Bifurcation of abdominal aorta
9
Q
What are MRI scans designed for looking at?
A
Soft tissues Tendons Ligaments Spinal cords Brain
10
Q
What are CT scans designed for looking at?
A
Injuries from trauma
Staging cancer
Diagnosing conditions in blood vessels
