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- W2350606815 abstract "Objective: To evaluate the diagnostic value of color Doppler flow imaging and pulsed Doppler ultrasonography in screening renal artery stenosis(RAS).Methods: Thirty-three branches of renal artery in 17 patients with RAS and 36 branches of renal artery in 18 hypertensive subjects without RAS were enrolled in the study.The peak systolic velocity of renal artery (Vmax),the ratio of peak systolic velocity of renal artery and abdominal aorta (RAR) and the size of kidney was measured by color Doppler flow imaging and pulsed Doppler ultrasonography and compared with angiography or CTA.Results: Twenty-one branches of renal artery in 17 patients showed Vmax≥180 cm/s,RAR≥1.5 and there were significantly positive correlations between Vmax,RAR and degree of RAS determined by renal artery angiography or CTA.The sensitivity,specificity and accuracy of Vmax≥210 cm/s were 88%,75% and 86% for patients with RAS≥50%,respectively.Conclusions: Doppler ultrasonography can not only be used to diagnose RAS accurately,but also to estimate the degree of stenosis,and it might be a diagnostic method in screening RAS in patients with hypertension." @default.
- W2350606815 created "2016-06-24" @default.
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- W2350606815 date "2010-01-01" @default.
- W2350606815 modified "2023-09-23" @default.
- W2350606815 title "Diagnostic Value of Doppler Ultrasonography in Screening Renal Artery Stenosis" @default.
- W2350606815 hasPublicationYear "2010" @default.
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