title: Three-dimensional echocardiographic reconstruction of right ventricular volume: in vitro comparison with two-dimensional methods.
abstract: Two-dimensional echocardiographic measures of right ventricular volume are limited by the asymmetric and crescentic shape of that ventricle and the difficulty in obtaining standardized views. We have developed a three-dimensional echocardiographic system that automatically integrates images and positional data and calculates right ventricular volume without the need for geometric assumptions or standardized views and a surfacing algorithm that takes advantage of the full three-dimensional data set. The accuracy of this system was studied and compared with two-dimensional methods in 12 gel-filled excised human right ventricles (18 to 74 ml). Volumes calculated by three-dimensional echocardiography correlated well with actual values (r = 0.99) and agreed more closely with them than did those obtained by two-dimensional methods (p < 0.02).
authors.affiliation: Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Boston 02114.
authors.forename: L
authors.initials: L
authors.lastname: Jiang
authors.forename: M D
authors.initials: MD
authors.lastname: Handschumacher
authors.forename: M G
authors.initials: MG
authors.lastname: Hibberd
authors.forename: S C
authors.initials: SC
authors.lastname: Siu
authors.forename: M E
authors.initials: ME
authors.lastname: King
authors.forename: A E
authors.initials: AE
authors.lastname: Weyman
authors.forename: R A
authors.initials: RA
authors.lastname: Levine
mesh_terms: D000465:Algorithms; D004452:Echocardiography / Q000379:methods*; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted; D066298:In Vitro Techniques; D015203:Reproducibility of Results; D016278:Ventricular Function, Right