Abdominal Imaging Flashcards
1
Q
Extraluminal air
A
Air outside of bowel
- when sitting upright: will pool under diaphragm
- when left lateral decubitus or supine: will pool towards top
2
Q
Acute abdominal series
A
Combination of radiographic images that are routinely obtained in patients who have acute abdominal pain
- supine
- erect
- erect chest
3
Q
Couinaud system
A
Classification of 8 surgically segmented parts of the liver.
4
Q
Liver vs spleen attenuation
A
On noncontrast CT scans, liver should always be denser or equal to the spleen density.
5
Q
Splenomegaly
A
Spleen extends past 12th rib and/or is larger than 14cm
6
Q
Normal aorta size
A
3 cm (anything larger = AAA)
7
Q
IVC
A
Lies right of the aorta and can appear round or oval vs only rough for aorta
