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Should a fixed external reference system be used to analyze left ventricular wall motion?

P D Clayton·G M Jeppson·S C Klausner
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Abstract

To investigate whether a fixed external reference system should be used to most accurately describe regional left ventricular wall motion, we used vectors to analyze a simple model of ventricular contraction. If measured in a fixed external reference system, motion of implanted radiopaque midwall markers may contain translational as well as contractile components. Therefore, comparisons of different reference systems that use marker motion measured in a fixed reference system as a standard will be biased unless proper corrections are included. We conclude that evidence to data does not indicate that the use of a fixed reference system is superior to other methods for analyzing regional ventricular wall motion.

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HeartHeart DiseasesHeart VentriclesHumansModels, CardiovascularMyocardial ContractionRadiographyJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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BibTeXRIS

P D Clayton, G M Jeppson, S C Klausner. 1982. Should a fixed external reference system be used to analyze left ventricular wall motion?. https://doi.org/10.1161/01.cir.65.7.1518

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