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In Vivo Validation of Volume Flow Measurements of Pulsatile Flow Using a Clinical Ultrasound System and Matrix Array Transducer.

The goal of this study was to evaluate the accuracy of a non-invasive C-plane Doppler estimation of pulsatile blood flow in the lower abdominal vessels of a porcine model. Doppler ultrasound measurements from a matrix array transducer system were compared with invasive volume flow measurements made...

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Published in:Ultrasound in Medicine & Biology Vol. 43; no. 3; pp. 579 - 586
Main Authors: Hudson, John M., Williams, Ross, Milot, Laurent, Wei, Qifeng, Jago, James, Burns, Peter N.
Format: research Journal Article
Published: Elsevier B.V. Mar2017
Online Access:View this record in EBSCOhost
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      dt: Mar2017
      vid: 43
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      pub: Elsevier B.V.
      place: New York, New York
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        NLM27979667
        121244406
        10.1016/j.ultrasmedbio.2016.10.008
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        atl: In Vivo Validation of Volume Flow Measurements of Pulsatile Flow Using a Clinical Ultrasound System and Matrix Array Transducer.
      aug:
        au:
          Hudson, John M.
          Williams, Ross
          Milot, Laurent
          Wei, Qifeng
          Jago, James
          Burns, Peter N.
        affil: Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
      sug:
        subj:
          Ultrasonography, Doppler Methods
          Transducers
          Blood Circulation Physiology
          Physics
          Abdomen Blood Supply
          Swine
          Abdomen
          Reproducibility of Results
          Female
          Animal Studies
          Models, Biological
          Validation Studies
          Comparative Studies
          Evaluation Research
          Multicenter Studies
          Funding Source
          Female
      ab: The goal of this study was to evaluate the accuracy of a non-invasive C-plane Doppler estimation of pulsatile blood flow in the lower abdominal vessels of a porcine model. Doppler ultrasound measurements from a matrix array transducer system were compared with invasive volume flow measurements made on the same vessels with a surgically implanted ultrasonic transit-time flow probe. For volume flow rates ranging from 60 to 750 mL/min, agreement was very good, with a Pearson correlation coefficient of 0.97 (p < 0.0001) and a mean bias of -4.2%. The combination of 2-D matrix array technology and fast processing gives this Doppler method clinical potential, as many of the user- and system-dependent parameters of previous methods, including explicit vessel angle and diameter measurements, are eliminated.
      pubtype: Academic Journal
      doctype:
        research
        Journal Article
      ougenre: Article
    language: English
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