Renal artery stenosis on Doppler

Case contributed by Dr Adriana Dubbeldam

Presentation

Acute kidney failure and hypertension.

Patient Data

Age: 65 years
Gender: Male
Ultrasound

Intrarenal Doppler examination reveals a low resistance index in the right kidney with flattened arterial curves ("parvus tardus"), suggestive for renal artery stenosis by the indirect method. Ostial arterial curves where not obtainable due to important bowel movement artefacts (direct method).

CT angiography on the next day to confirm renal artery stenosis

The diagnosis was confirmed by CT angiography which showed important atherosclerotic calcifications of the right renal artery ostium and a moderate to severe stenosis.

Case Discussion

Renal artery stenosis refers to a narrowing of a renal artery.

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Case information

rID: 21826
Case created: 20th Feb 2013
Last edited: 23rd Sep 2015
Inclusion in quiz mode: Included

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