Abdominal Vascular Evaluation ARDMS Question-Bank with 100% correct Answers

Normal SMA and IMA flow pre-prandial = {{Answer:- high resistance

Normal SMA and IMA flow post-prandial = {{Answer:- lower resistance with increased diastolic flow

Abnormal SMA and IMA flow post-prandial {{Answer:- no change in resistance

- Patient experiences reproducible pain after eating

- May demonstrate an abdominal bruit

- Collateral pathways can form with chronic disease: {{Answer:- Mesenteric ischemia

stenosis/occlusion of two or more of the three major arteries which supply the small bowel and colon with oxygenated blood (CA, SMA, IMA) {{Answer:- Mesenteric ischemia

- Pancreaticoduodenal arcade (gastroduodenal artery to the pancreaticoduodenal arteries); most common

- Arc of Riolan

- Marginal artery of Drummond {{Answer:- Collateral pathways can form with chronic disease: Mesenteric ischemia

preferred for mesenteric, liver and splenic arterial evaluation {{Answer:- Arteriography (angiogram)

Mesenteric/Aortic Ratio is usually around 1.0

Mesenteric/Aortic Ratio >3.0 indicates {{Answer:- hemodynamically significant stenosis

SMA

 ¨ PSV >2.75m/s > 70% stenosis (Moneta)

 ¨ EDV >0.45m/s >50% stenosis (Bowersox)

 ¨ Increased diastolic flow {{Answer:- SMA Doppler evaluation