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DVT398-BL5
USIDMS Lower Extremity Arteries
Question | Answer |
---|---|
What is an aneurysm? | a localized dilation of an artery involving all three layers of the arterial wall |
What is plaque? | the deposit of fatty material within the vessel walls, which is characteristic of atherosclerosis |
How should normal aterial walls appear? | smooth and uniform |
How do atherosclerotic disease vessel walls appear? | thickened |
A vessel is considered aneurysmal if the diameter is ____ times greater than the adjacent, more proximal segment | 1.5 |
______ ratios can help assess whether the visualiztion lesion is hemodynmically significant and can determine whether repair of the lesion may be beneficial | velocity |
What is the gold standard imaging tool to evaluate the peripheral arterial system? | contrast arteriography (CA) |
What are classic symptoms that may indicate the presence of arterial insufficiency or ischemia? | hair loss, nail thickening, and skin changes |
What are risk factors for arterial insufficiency? | diabetes, hyperlipidemia, hypertension, or history of smoking |
What type of transducer is ideal for aortoiliac scanning? | curvilinear 5-2MHz and phased arrary 3-2MHz |