[Assessment of characteristics of myocardial deformation in healthy subjects of various age groups by the X-STRAIN echocardiography].
Aim of the study was to master XStrain software and to obtain values of left ventricular (LV) myocardial velocity, longitudinal, circumferential, radial strain, and strain rate in a population of healthy subjects from various age groups. Sixty healthy volunteers were divided into 2 groups: aged 19-30 years (n = 35, mean age 24.6 +/- 3.1 years) and 30-58 years (n = 25, mean age 43.2 +/- 9.1 years). Values of all types of myocardial strain and circumferential strain rate did not differ substantially between groups at all LV levels: basal, median, and apical. Radial strain rate in the studied groups diminished from basal to apical LV segments. Longitudinal strain rate differed between LV sections in subjects older than 30 years. Myocardial velocity decreased from basal to apical myocardial segments.
V É
VÉ
Oleĭnikov
V A
VA
Galimskaia
I A
IA
Donchenko
D000328:Adult; D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D004452:Echocardiography / Q000295:instrumentation / Q000379:methods; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D012984:Software; D016277:Ventricular Function, Left / Q000502:physiology