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DVT423-EH5

USIDMS Renal Doppler

What is the criteria for Renal Doppler stenosis? Stenosis > 60%
Why would someone get a renal Doppler? Uncontrolled hypertension, decreased renal function, abdominal bruit
Which renal vein is longer? The left renal vein is longer.
Which renal artery is shorter? The left renal artery is shorter.
What is the course of the blood flow within the kidney? Renal artery -> Segmental arteries -> Interlobar arteries -> Arcuate arteries -> Interlobular arteries
What does a direct Renal Doppler evaluate? Proximal, middle, and distal renal artery segments as well as the segmental arteries
What does a indirect Renal Doppler evaluate? Segmental and interlobar arteries
How do you calculate the Renal- to - Aortic ratio? Take the highest renal artery velocity and divide it by the peak systolic velocity of the aorta.
What are the normal characteristics for kidney blood flow? High flow velocity (PSV 100 +/- 20cm/s) Low resistance (RI < 0.75) High diastolic flow (EDV 30 +/- 5cm/s)
What is the criteria for >60% stenosis to occur? RAR >3.5 PSV >180cm/s Post stenotic turbulence Low flow velocity in the distal segment of the renal artery
Created by: emhart2