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DVT423-TB5
USI DMS Renal Doppler
Question | Answer |
---|---|
Where does the left renal vein lie? | Posterior to SMA and anterior to the aorta. |
What arteries run parallel to the cortex? | Arcuate arteries |
What are the indications for a renal Doppler? | Uncontrolled hypertension, specifically in younger patients, decreasing renal function, and abdominal bruit. |
What is the difference between the two types of renal Doppler exams? | The direct method examines the entire renal artery bilaterally and the indirect method assesses only the segmental renal arteries. |
What is the renal aortic ratio for greater than 60% stenosis? | greater than or equal to 3.5 |
When doing an indirect renal Doppler, how should our sample volume be set up? | Large sample volume of 4-6mm |
What is the acceleration time also known as? | Rise time |
What should be present in a normal exam when measuring the acceleration time? | The presence of the early systolic peak. |
What is the most common cause of renal artery disease? | Atherosclerosis |
What is the second most common curable cause of renovascular disease? | Medial fibromuscular dysplasia |