| US Findings of RAS |
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| l | Parvus-tardus
flow in intra-parenchymal |
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| vessels |
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| l | Use color
Doppler to locate stenosis. |
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| Peak systolic
velocities > 200 cm/sec with |
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| turbulent
flow. |
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| l | False positive
diagnoses may occur with |
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| abrupt turn in
the main renal artery. |
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| l | With chronic
rejection, segmental renal |
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| artery
stenoses may occur |
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