1. 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 (September 2000)
DOI: /mva
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

2. 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  , DOI: ( /mva )
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

3. 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  , DOI: ( /mva )
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

4. 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  , DOI: ( /mva )
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

5. 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  , DOI: ( /mva )
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