Assessment of left ventricular systolic function of short axis in normal children
ZHONG Shu-wen
ZHANG Yu-qi
Chen Li-jun
ZHANG Zhi-fang
Abstract：Objective To assess left ventricle (LV) systolic function of short axis in normal children with 3-dimensional Speckle Tracking Imaging (3D-STI) .Methods Radial strain (RS) ,Circumferential strain (CS) ,3D strain (3DS) ,radial displacement (RD) ,3D displacement (3DD) and time to peak strain and time to peak displacement of LV were measured in 116 healthy children by 3D-STI .Values of different segments were compared ,then correlation were analyzed with age and with heart rate .Results ① The curves of RS ,3DS ,RD and 3DD were increased with beginning of systolic interval ,ob-tained the peak point at the end of systolic interval ,then decreased gradually to the baseline ;② RS and 3DS in basal ante-rior septum were the higher than the paremters in the rest basal segments ;③ RS ,3DS ,RD and 3DD were significantly decreasing from basal ,mid to apical segments ;④ RS ,3DS in various segments did not correlate with age or heart rate . Conclusion Independent of age or heart rate ,RS and 3DS could be accurately used to estimate LV regional and global mo-tion respectively .
Keywords：3-dimensional speckle tracking imagingLeft ventricle3D strain
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 733-737 )