Reference intervals and percentile curve for left ventricular outflow tract (<scp>LVOT</scp>), velocity time integral (<scp>VTI</scp>), and <scp>LVOT</scp>‐<scp>VTI</scp>‐derived hemodynamic parameters in healthy children and adolescents: Analysis of echocardiographic methods association and agreement

Abstract

Stroke volume, CO, and CI data from 2D and PWD are not equivalent. An accurate analysis of LVOT-VTI-derived parameters requires considering age and BSA. In this study, age- and BSA-related RIs and percentiles for LVOT, VTI, and hemodynamic parameters in healthy children and adolescents were determined, discriminating data according to the methodological approach (2D or PWD).