Feasibility of regional and global left ventricular shape analysis from real-time 3d echocardiography.
Combined assessment of left ventricular (LV) shape and function could provide new insights into the process of LV remodeling. Real-time 3D echocardiography (RT3DE) allows rapid and accurate semi-automated extraction of LV endocardial surfaces. Our aims were to quantify LV morphology both globally and regionally, using new ellipsoidal (E), spherical (S) and conical (C) shape indices, in a large population in order to define normal values. During systole the LV became less spherical and more conical, while E index remained unchanged. LV volume estimation was more affected by operator subjectivity than C and S indexes computation. These results constitute a reference for future comparisons with serial follow-up of patients during LV remodeling.
Maffessanti
Francesco
F
Politecnico di Milano, Dipartimento di Bioingegneria, Italy.
Sugeng
Lissa
L
Takeuchi
Masaaki
M
Weinert
Lynn
L
Mor-Avi
Victor
V
Lang
Roberto M
RM
Caiani
Enrico G
EG
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography / Q000379:methods*; D004699:Endocardium / Q000473:pathology*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D013997:Time Factors