Comparison of geometric and densitometric techniques for the measurement of left ventricular volume changes

M. Nitzan, D. Sapoznikov, M. Mosseri, M. Gotsman, Y. Mahler

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Left ventricular (LV) volumes were assessed densitometrically by measuring the mean logarithm of the gray level (MLG) of a fixed region of interest, which includes the LV silhouette at end-diastole. Stroke volumes were obtained from calculating the MLG difference between diastole and systole without using contrast material. The results were significantly lower than those obtained by the area-length method. The ejection fraction was derived from the MLG difference between two consecutive diastoles after intravenous injection of contrast material. The results were well correlated with those calculated by the area-length method.

Original languageEnglish
Title of host publicationComputers in Cardiology
PublisherPubl by IEEE
Pages389-391
Number of pages3
ISBN (Print)0818621141
StatePublished - Sep 1989
Externally publishedYes
EventProceedings - Computers in Cardiology - Jerusalem, Isr
Duration: 19 Sep 198922 Sep 1989

Publication series

NameComputers in Cardiology
ISSN (Print)0276-6574

Conference

ConferenceProceedings - Computers in Cardiology
CityJerusalem, Isr
Period19/09/8922/09/89

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