Reference ranges of fetal heart function using a Modified Myocardial Performance Index: a prospective multicentre, cross-sectional study.

ABSTRACT:

Objectives

The primary aim of this study was to establish the normal reference ranges of the fetal left ventricular (LV) Modified Myocardial Performance Index (Mod-MPI). A secondary aim was to evaluate the agreement between manual and automatic measurements for fetal Mod-MPI.

Design

A prospective, multicentre, cross-sectional study.

Participants

Normal singleton pregnancies.

Methods

The LV functions of normal singleton pregnancies were assessed in nine centres covering eight provinces in China using unified ultrasound protocols and settings and standardised measurements by pulsed Doppler at 20-24, 28-32 and 34-38 weeks of gestation. The isovolumetric relaxation time (IRT), isovolumetric contraction time, ejection time (ET) and Mod-MPI were measured both automat

SUBMITTER: Sun L 

PROVIDER: S-EPMC8264880 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature