Videodensitometric determination of left ventricular ejection and filling characteristics

Joachim H. Bürsch, Erik L. Ritman, Ralph E. Sturm, Earl H. Wood

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Left ventricular ejection fraction and values proportional to mitral and aortic flow were measured throughout the cardiac cycle by videodensitometric analysis of left ventricular roentgen angiograms. The technique was used simultaneously with measurement of the dimensions of the ventricle to provide absolute values for comparison. Sensitivity of the technique was tested by the ability to detect the atrial contribution to mitral flow and left ventricular chamber volume. Roentgen videodensitometry has the advantages that much information can be extracted from videoangiograms in real-time (on-line, if need be), it requires relatively low concentration of contrast medium, and it is self-calibrating.

Original languageEnglish (US)
Pages (from-to)62-71
Number of pages10
JournalAnnals of Biomedical Engineering
Volume3
Issue number1
DOIs
StatePublished - Mar 1 1975

ASJC Scopus subject areas

  • Biomedical Engineering

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