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DVT423- TR3

USIDMS Mesenteric Doppler

QuestionAnswer
What type of waveform is seen in the aorta above the renal arteries? Why? Low resistance, because the organs need constant flow
What type of waveform is seen in the aorta below the renal arteries? Why? High resistance, because the legs do not need constant flow
Why is true mesenteric ischemia rare? Multiple collateral routes; the celiac, SMA, and IMA must all be occluded
How does the SMA waveform look preprandial? High resistance
How does the SMA waveform look postprandial? Low resistance
What PSV is characteristic of a 70% stenosis of the celiac artery? Greater than 200 cm/s and post stenotic turbulence
What PSV is characteristic of a 70% stenosis of the SMA? Greater than 275 cm/s and post stenotic turbulence
Which patient population is the highest risk group for AAA complications? Males over 60 years of age
What are the branches of the celiac axis? Left gastric artery, splenic artery, and common hepatic artery
Which artery allows communication between the celiac artery and SMA, providing collateral flow ? Pancreaticoduodenal artery
Created by: taylormrobbins1
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