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Characterization of tibial velocities by duplex ultrasound in severe peripheral arterial disease and controls  Jeffrey D. Crawford, MD, Nicholas G. Robbins,

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Presentation on theme: "Characterization of tibial velocities by duplex ultrasound in severe peripheral arterial disease and controls  Jeffrey D. Crawford, MD, Nicholas G. Robbins,"— Presentation transcript:

1 Characterization of tibial velocities by duplex ultrasound in severe peripheral arterial disease and controls  Jeffrey D. Crawford, MD, Nicholas G. Robbins, BS, Lauren A. Harry, PharmD, Dale G. Wilson, MD, Robert B. McLafferty, MD, Erica L. Mitchell, MD, Gregory J. Landry, MD, Gregory L. Moneta, MD  Journal of Vascular Surgery  Volume 63, Issue 3, Pages (March 2016) DOI: /j.jvs Copyright © 2016 Society for Vascular Surgery Terms and Conditions

2 Fig 1 Tibial parameters. AT, Anterior tibial artery; profunda, profunda femoris artery; PSV, peak systolic velocity; PT, posterior tibial artery. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2016 Society for Vascular Surgery Terms and Conditions

3 Fig 2 Mean peak systolic velocity (PSV) 95% confidence interval (C.I.) for non-peripheral arterial disease (PAD) controls and PAD patients. All tibiopopliteal artery measurements represent the mean of the proximal, mid, and distal PSV of each artery. The profunda PSV is measured only at the proximal segment of the artery. P value is < .05 for all arteries depicted by independent t-test. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2016 Society for Vascular Surgery Terms and Conditions

4 Fig 3 A, Tibial velocities and tibial parameters by ankle-brachial index (ABI). ∗P < .05 by analysis of variance (ANOVA). AAV, Average ankle velocity; AT, anterior tibial artery; MTV, mean tibial velocity; PAV, peak ankle velocity; PSV, peak systolic velocity; PT, posterior tibial artery. PAV is the maximum PSV measured from the distal segment of the PT, AT, or peroneal artery. AAV is the average of the distal PSVs of the PT, AT, and peroneal arteries. MTV is the mean of the proximal, mid, and distal segment of each tibial artery averaged together. API is the AAV divided by the PSV of the proximal profunda artery. B, Ankle-profunda index (API) by ABI. API is calculated by first calculating the AAV, which is the mean of the distal PSVs of the PT, AT, and peroneal arteries. The AAV is then divided by the PSV of the proximal profunda artery, yielding the API. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2016 Society for Vascular Surgery Terms and Conditions

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