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Estimation of brachial artery volume flow by duplex ultrasound imaging predicts dialysis access maturation  Sae Hee Ko, MD, Dennis F. Bandyk, MD, Kelley.

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Presentation on theme: "Estimation of brachial artery volume flow by duplex ultrasound imaging predicts dialysis access maturation  Sae Hee Ko, MD, Dennis F. Bandyk, MD, Kelley."— Presentation transcript:

1 Estimation of brachial artery volume flow by duplex ultrasound imaging predicts dialysis access maturation  Sae Hee Ko, MD, Dennis F. Bandyk, MD, Kelley D. Hodgkiss-Harlow, MD, Andrew Barleben, MD, John Lane, MD  Journal of Vascular Surgery  Volume 61, Issue 6, Pages (June 2015) DOI: /j.jvs Copyright © 2015 Society for Vascular Surgery Terms and Conditions

2 Fig 1 Pulsed Doppler velocity spectra recorded from the midarm brachial artery and cephalic vein conduit of a brachial-cephalic dialysis access fistula. Note, there is a less disturbed flow pattern in the brachial artery compared with spectral broadening of flow turbulence in the vein conduit. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

3 Fig 2 Brachial artery velocity spectral waveform recorded using a 60° Doppler angle and center-stream pulsed-Doppler sample volume location. The value of peak systolic velocity (PSV) and end-diastolic velocity (EDV) are estimated by visual inspection of the waveform. Note the values selected are within, not above, the pulsed Doppler spectral waveform. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

4 Fig 3 Scatter plot of brachial artery vs access conduit volume flow (VF) measurements in 75 patients with an autogenous vein fistula (AVF, n = 40) or arteriovenous (AV) bridge graft (n = 30). Linear correlation coefficient (R2) was Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

5 Fig 4 Brachial artery peak systolic velocity (PSV) relative to volume flow (VF) category. PSV was higher in the >800 mL/min category. Data are shown as mean ± standard deviation. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

6 Fig 5 Representative images of brachial velocity spectra waveforms and velocity spectra criteria used to define the three volume flow (VF) categories: low, <600 mL/min; acceptable, 600 to 800 mL/min; and high, >800 mL/min. EDV, End-diastolic velocity; PSV, peak systolic velocity. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2015 Society for Vascular Surgery Terms and Conditions

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