Digital analysis of transmitral color Doppler M-mode data: A potential new approach to the noninvasive assessment of diastolic function

James David Thomas, Neil L. Greenberg, Pieter M. Vandervoort, David S. Aghassi, Barry F. Hunt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Color Doppler-M is an echocardiographic technique which reports blood velocity along a single echocardiographic scan line at <1 mm intervals, updated every 4 to 8 ms. To investigate regional ventricular pressure gradients associated with diastolic relaxation, the authors have designed a computer system for the processing and analysis of Doppler M-mode representations of blood passing from the left atrium to the ventricle. Data were obtained digitally from a commercial echocardiographic machine with velocity output at 5-b resolution on a 0.67-mm 4-ms spatiotemporal grid. After correcting the velocity for aliasing, data were smoothed by median and Gaussian filtration to remove both random and nonrandom noise. Data extracted included peak velocity, its spatial peak, and the inertial mass of transmitral blood. Availability of these methods should allow the use of color M-mode echocardiography in the clinical and research investigation of ventricular diastolic function.

Original languageEnglish (US)
Title of host publicationProceedings - Computers in Cardiology, CIC 1992
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages631-634
Number of pages4
ISBN (Electronic)0818635525, 9780818635526
DOIs
StatePublished - 1992
Event1992 IEEE Conference on Computers in Cardiology, CIC 1992 - Durham, United States
Duration: Oct 11 1992Oct 14 1992

Publication series

NameProceedings - Computers in Cardiology, CIC 1992

Conference

Conference1992 IEEE Conference on Computers in Cardiology, CIC 1992
CountryUnited States
CityDurham
Period10/11/9210/14/92

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Health Informatics
  • Computer Science Applications
  • Biomedical Engineering

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