Renal duplex sonography: Main renal artery versus hilar analysis

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Presentation transcript:

Renal duplex sonography: Main renal artery versus hilar analysis Stephen J. Motew, MD, Gregory S. Cherr, MD, Timothy E. Craven, MSPH, Jeffrey A. Travis, MD, James M. Wong, MD, Scott W. Reavis, RVT, Kimberley J. Hansen, MD Journal of Vascular Surgery Volume 32, Issue 3, Pages 462-471 (September 2000) DOI: 10.1067/mva.2000.108643 Copyright © 2000 Society for Vascular Surgery and The American Association for Vascular Surgery, a Chapter of the International Society for Cardiovascular Surgery Terms and Conditions

Fig. 1 AT (in milliseconds) is measured on the spectrum analysis of the Doppler-shifted waveform from the start of systolic uprise to the first PSV. Journal of Vascular Surgery 2000 32, 462-471DOI: (10.1067/mva.2000.108643) Copyright © 2000 Society for Vascular Surgery and The American Association for Vascular Surgery, a Chapter of the International Society for Cardiovascular Surgery Terms and Conditions

Fig. 2 Scatter plot of AT versus PSV. AT (y-axis ) in milliseconds, PSV (x-axis ) in meters per second. Open circles denote < 60% renal artery stenosis; closed circles denote ≥ 60% renal artery stenosis by comparative angiography. Journal of Vascular Surgery 2000 32, 462-471DOI: (10.1067/mva.2000.108643) Copyright © 2000 Society for Vascular Surgery and The American Association for Vascular Surgery, a Chapter of the International Society for Cardiovascular Surgery Terms and Conditions

Fig. 3 ROC curve: sensitivity (y-axis ) rate versus false-positive rate (x-axis ) for PSV. The value for PSV that maximizes sensitivity and specificity is 1.8 m/s. Journal of Vascular Surgery 2000 32, 462-471DOI: (10.1067/mva.2000.108643) Copyright © 2000 Society for Vascular Surgery and The American Association for Vascular Surgery, a Chapter of the International Society for Cardiovascular Surgery Terms and Conditions

Fig. 4 ROC curve: sensitivity (y-axis ) rate versus false-positive rate (x-axis ) for AT. The value for AT that maximizes sensitivity and specificity is 58 ms or more. Journal of Vascular Surgery 2000 32, 462-471DOI: (10.1067/mva.2000.108643) Copyright © 2000 Society for Vascular Surgery and The American Association for Vascular Surgery, a Chapter of the International Society for Cardiovascular Surgery Terms and Conditions