LV Myocardial Performance Index

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Data Acquisition

LV myocardial performance index

Reference Values

LV MPI
Normal0.39 ± 0.05
Dilated cardiomyopathy0.59 ± 0.10

Formula

\[LV \hspace{0.2cm}MPI = \frac{IVCT + IVRT}{LVET} = \frac{MCOT-LVET}{LVET} \]

Definitions

LV MPILV myocardial performance index
MCOTMitral Valve Closure to Opening Time
LVETLV ejection time

Reference

1.Tei C, Ling LH, Hodge DO, et al. New index of combined systolic and diastolic myocardial performance: a simple and reproducible measure of cardiac function – a study in normals and dilated cardiomyopathy. J Cardiol 1995;26:357-366. Abstract

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Developer & Illustrator: Sirikarn Napan, MD, FACC