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DVT423- TH5

USIDMS Renal Doppler

QuestionAnswer
The right renal artery courses _____ to the _____. Posterior to IVC
The left renal vein courses between ____ and ____. SMA and Aorta
Which renal artery is longer? Right
Which renal vein is shorter? Right
Does the renal artery or vein course anterior to the hilum? Vein
How does a sonographer get the "Banana Peel" sign? Right flank approach, (RT RENAL ARTERY IS RED, LT RENAL ARTERY IS BLUE)
Name the arteries in order from at hilum outwards toward cortex. Main renal artery, Segmental renal artery, Interlobar arteries, Arcuate arteries, Interlobular arteries.
What could allow a kidney to still receive blood if the main renal artery was occluded. Accessory (polar) renal arteries
How do you get RAR? Highest renal artery velocity / Peak velocity of aorta
What angle should you use inside a kidney? 0 degrees preferably, always <20 degrees
What is the percentage of stenosis for renal arteries? 60%
What is the normal max RAR? 3.5
For Indirect Renal Doppler Setup what should the spectral time sweep be set to? 2 or 3 seconds
What does the early systolic peak (ESP) help measure and is it normal? Helps measure acceleration time (AT) and yes it is normal
What is the most common etiology of renal artery disease? Atherosclerosis
What is the second most common curable cause of renovascular disease? Medial fibromuscular dysplasia (common in females aged 25-50)
What will happen to the velocities if an aortic dissection occurs? High velocities will occur
Reversed, blunted diastolic flow component of renal artery suggests Renal vein obstruction
Should a renal transplant have high or low resistance? Low resistance
What is nutcracker syndrome? Left renal vein compressed by SMA and aorta
Created by: thollander