Manufacturer and machine setting based variation of parameters resulting from model-based image processing of echocardiographic transmitral Doppler velocity profiles

Andrew F. Hall, Julia A. Bettlach, Scott P. Nudelman, Sandor J. Kovacs

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

A flow-phantom study utilizing constant and pulsatile flow was performed to determine the manufacturer and machine setting based variation of the maximum velocity envelope (MVE), and model parameters (c,k) obtained from model-based image processing (MBIP). Both numerical and flow-phantom experiments indicate that variations of c and k are a function of the magnitude of c and k and exhibit directional dependence. A processing method which minimizes the effects was derived and tested. The results show that the variations in the size of the parameters due to machine type and setting fall within c-k space domains of constant mean-square error. The variation due to machine type and setting is less than variation due to physiologic or inter-group variability.

Original languageEnglish
Pages (from-to)1205-1210
Number of pages6
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
StatePublished - Dec 1 1996
EventProceedings of the 1996 IEEE Ultrasonics Symposium. Part 2 (of 2) - San Antonio, TX, USA
Duration: Nov 3 1996Nov 6 1996

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