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DVT423- TH5
USIDMS Renal Doppler
| Question | Answer |
|---|---|
| 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 |