2025年2月10日 · Ultrasound, although most freely available, cheap and often used first-line, is relatively operator-dependent and may prove time-consuming. The three-dimensional reconstruction of the renal vascular tree provides a reliable method of …

This article gives a critical review based on a selective literature search on measurement methodology and the validity of ultrasound in renal artery stenosis.

2016年10月4日 · Screening for RAS is indicated in suspected renovascular hypertension or ischemic nephropathy, in order to identify patients in whom an endoluminal or surgical revascularization is advisable. Screening tests for RAS have …

2022年5月3日 · Imaging tests commonly done to diagnose renal artery stenosis include: Doppler ultrasound. High-frequency sound waves help your doctor see the arteries and kidneys and check their function. This procedure also helps your doctor find blockages in the blood vessels and measure their severity. CT scan.

2012年3月2日 · A renal artery ultrasound is one of the most challenging tests in vascular ultrasound. The most common indication for a renal artery ultrasound is to assess for renal artery stenosis. It usually takes around 1 hour. When imaging conditions are less than optimal, renal artery ultrasound can take longer or should be acknowledged as imperfect.

2016年3月5日 · Doppler ultrasound evaluation of the renal arteries is one of the most challenging tests to perform given the small size of the renal vessels, their depth, and variation in anatomy. It requires knowledge of the local anatomy, normal waveform physiology, and image optimization.

Many hypertensive patients are referred for duplex ultrasound to screen for the presence of renal artery stenosis. While ultrasound imaging with Doppler analysis is a useful tool for evaluation of the renal arteries, it is often underused because it can …

Background and purpose: As a non-invasive, side effect-free and cost-effective method, ultrasonography represents the method of choice for the diagnosis of renal artery stenosis. Four different criteria in total, including two direct criteria in peak systolic velocity (PSV) and renal aortic ratio (RAR) and two indirect criteria in resistance ...

A renal artery Doppler ultrasound is a vital, non-invasive test that helps diagnose and manage conditions affecting kidney blood flow, such as renal artery stenosis and hypertension. By providing detailed insights into your renal vascular health, this test enables your healthcare provider to develop a personalized treatment plan tailored to ...

the past, Doppler ultrasound (US) of the renal arteries (RAs), angio-CT, or magnetic resonance angiography (MRA) have replaced other modalities and they are now considered the screening tests of choice.