# RV Myocardial Performance Index

#### Reference Values

 RV MPI by Pulsed Doppler by Tissue Doppler Normal ≤0.40 ≤0.55 Abnormal >0.40 >0.55

#### Formula

$RV \hspace{0.2cm}MPI = \frac{IVCT + IVRT}{RVET} = \frac{TCOT-RVET}{RVET}$

#### Definitions

 TCOT Tricuspid valve closure to opening time RVET RV ejection time RV MPI RV myocardial performance index

#### References

 1 Rudski LG, et al. Guidelines for the echocardiographic assessment of the right heart in adults: a report from the American Society of Echocardiography. J Am Soc Echocardiogr. 2010 Jul;23(7):700-1. Full text 2 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