Annals of Biomedical Engineering

, Volume 30, Issue 7, pp 982–982 | Cite as

Monitoring Hemodialysis Vascular Access by Digital Phonoangiography

  • D. John Doyle
  • Daniel M. Mandell
  • Robert M. Richardson


We are intrigued by the possibility of using digital spectral analysis to detect hemodialysis vascular access stenosis. Such a monitor could be inexpensive, noninvasive, and portable enough to allow continuous monitoring. This report suggests how individuals wishing to conduct such research can use a simple but effective transducer design we have employed, how the data so obtained can be analyzed in the time and frequency domains using inexpensive digital signal processing software available via the Internet, and how data recordings might be shared via the Internet to facilitate collaboration. © 2002 Biomedical Engineering Society.

PAC2002: 8763Df, 8780Tq

Fistula Graft Stenosis 

Copyright information

© Biomedical Engineering Society 2002

Authors and Affiliations

  • D. John Doyle
    • 1
  • Daniel M. Mandell
    • 2
  • Robert M. Richardson
    • 3
  1. 1.Cleveland Clinic FoundationCleveland
  2. 2.TorontoCanada
  3. 3.The Toronto General Hospital E N 13-232TorontoCanada

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