Abdominal Doppler Fundamentals| 60 questions| with complete solutions

color duplex imaging is used to evaluate perfusion in the following organ systems: CORRECT ANSWERS: 1.-Abdominal Aorta for aneurysm / Stenosis 2.-Renal Artery/ vein 3.-mesenteric arteries 4.-Portal Venous system 5.-Hepatic vasculature Focal dilation of an artery involving 3 layers of the arterial wall that exceeds the normal diameter by more than 50%. CORRECT ANSWERS: Aneurysm intimal lining of arteries altered by presence of: ? CORRECT ANSWERS: Atherosclerosis presence of: - lipids - complex carbohydrates - blood and blood product - fibrous tissue - calcium deposits won't cause symptoms unless there is an significant stenosis? - what is considered a significant stenosis? CORRECT ANSWERS: - Atherosclerosis -> 50 % often asymptomatic, Suspected most often due to palpable clinical exam CORRECT ANSWERS: Atherosclerosis Sonographic findings of Atherosclerosis: CORRECT ANSWERS: -luminal irregularities - wall calcification Most common cause of aneurysm CORRECT ANSWERS: Atherosclerosis when the areas of dilation are less than 3 cm or with irregular margins and non tapering profile. ( when it stays the same size the whole way down ) CORRECT ANSWERS: Ecstasia aorta must be greater than _______ to be considered "aneurysmal". CORRECT ANSWERS: 3cm Circumferentially dilation of an artery; uniform CORRECT ANSWERS: Fusiform ( true aneurysm ) Asymmetric outpouching dilations CORRECT ANSWERS: Saccular Aneurysm ( has neck ) ( AAA )- CORRECT ANSWERS: Abdominal Aortic