Скачать или смотреть Tei Index - Myocardial Performance

🫀 The Tei Index, also known as the Myocardial Performance Index (MPI), is a Doppler-derived measurement that reflects global ventricular performance by combining both systolic and diastolic function into one simple number.

It’s calculated using time intervals from pulsed Doppler:
👉 MPI = (IVCT + IVRT) ÷ ET

IVCT (Isovolumic Contraction Time): Time the ventricle contracts before ejection.

IVRT (Isovolumic Relaxation Time): Time the ventricle relaxes before filling.

ET (Ejection Time): Duration of active blood ejection through the semilunar valves.

Because it measures how much time the heart spends not pumping compared to how much time it is pumping, MPI is a powerful indicator of cardiac efficiency. A lower MPI indicates effective performance, while a higher MPI (greater than 0.50) suggests global dysfunction.

This measurement is especially valuable in fetal and pediatric echocardiography, as well as in cases of cardiomyopathy, congenital heart disease, chemotherapy monitoring, or growth restriction, where traditional metrics like EF or shortening fraction might not tell the full story.

💡Tip: MPI is relatively load-independent and often becomes abnormal before EF declines, making it an excellent early marker of compromised cardiac function.

#EchoTips #TeiIndex #MPI #FetalEcho #PediatricEcho #SonographersAfterDark #SoGoodItHertz #AllAboutUltrasound #CardiacSonography #Diastology #iheartecho #ultrasound