We have located links that may give you full text access.
CLINICAL TRIAL
JOURNAL ARTICLE
The utility of duplex ultrasound scanning of the renal arteries for diagnosing significant renal artery stenosis.
Annals of Internal Medicine 1995 June 2
OBJECTIVE: To determine the utility of duplex ultrasound scanning of the renal arteries in identifying patients with renal artery stenosis of 60% or more and in excluding patients with either normal renal arteries or renal artery stenosis of less than 60%.
DESIGN: A prospective, blinded study.
SETTING: Large tertiary referral center.
PATIENTS: 102 consecutive patients (44 men and 58 women with a mean age [+@- SD] of 63.3 +/- 13.4 years) who had both duplex ultrasound scanning of the renal arteries and renal arteriography. All patients who were studied had hypertension that was difficult to control, unexplained azotemia, or associated peripheral vascular disease (alone or in combination), giving them a high pretest likelihood of renovascular disease.
MAIN OUTCOME MEASUREMENTS: Peak systolic and end diastolic velocities, renal-aortic ratios, resistive index, and kidney sizes.
RESULTS: Sixty-two of 63 arteries with stenosis of less than 60% using arteriography were correctly identified by duplex ultrasound scanning. Thirty-one of 32 arteries with 60% to 79% stenosis using arteriography were correctly identified as having 60% to 99% stenosis on duplex ultrasound, whereas 67 of 69 arteries with 80% to 99% stenosis on arteriography were correctly identified as having 60% to 99% stenosis on ultrasound. Twenty-two of 23 arteries with total occlusion on arteriography were correctly identified by duplex ultrasound. The overall sensitivity of duplex ultrasound compared with arteriography was 0.98, the specificity was 0.98, the positive predictive value was 0.99, and the negative predictive value was 0.97.
CONCLUSION: Duplex ultrasound scanning of the renal arteries is an ideal screening test because it is noninvasive and can predict the presence or absence of renal artery stenosis with a high degree of accuracy.
DESIGN: A prospective, blinded study.
SETTING: Large tertiary referral center.
PATIENTS: 102 consecutive patients (44 men and 58 women with a mean age [+@- SD] of 63.3 +/- 13.4 years) who had both duplex ultrasound scanning of the renal arteries and renal arteriography. All patients who were studied had hypertension that was difficult to control, unexplained azotemia, or associated peripheral vascular disease (alone or in combination), giving them a high pretest likelihood of renovascular disease.
MAIN OUTCOME MEASUREMENTS: Peak systolic and end diastolic velocities, renal-aortic ratios, resistive index, and kidney sizes.
RESULTS: Sixty-two of 63 arteries with stenosis of less than 60% using arteriography were correctly identified by duplex ultrasound scanning. Thirty-one of 32 arteries with 60% to 79% stenosis using arteriography were correctly identified as having 60% to 99% stenosis on duplex ultrasound, whereas 67 of 69 arteries with 80% to 99% stenosis on arteriography were correctly identified as having 60% to 99% stenosis on ultrasound. Twenty-two of 23 arteries with total occlusion on arteriography were correctly identified by duplex ultrasound. The overall sensitivity of duplex ultrasound compared with arteriography was 0.98, the specificity was 0.98, the positive predictive value was 0.99, and the negative predictive value was 0.97.
CONCLUSION: Duplex ultrasound scanning of the renal arteries is an ideal screening test because it is noninvasive and can predict the presence or absence of renal artery stenosis with a high degree of accuracy.
Full text links
Trending Papers
A Personalized Approach to the Management of Congestion in Acute Heart Failure.Heart International 2023
Potential Mechanisms of the Protective Effects of the Cardiometabolic Drugs Type-2 Sodium-Glucose Transporter Inhibitors and Glucagon-like Peptide-1 Receptor Agonists in Heart Failure.International Journal of Molecular Sciences 2024 Februrary 21
The Effect of Albumin Administration in Critically Ill Patients: A Retrospective Single-Center Analysis.Critical Care Medicine 2024 Februrary 8
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app