title: Determination of right ventricular volume by two-dimensional echocardiography with a crescentic model.
abstract: Right ventricular volume in 14 fixed hearts from dogs was determined by echocardiography with an algorithm that takes into consideration the crescentic shape of the right ventricular (RV) cross-sectional area. To validate this model the volumes obtained by echocardiography were compared with volumes obtained by water displacement of silicone casts of the same 14 hearts. A strong linear correlation was demonstrated between the echocardiographic volumes and the volumes obtained by water displacement of RV casts (r = 0.96). The results also showed that the echocardiographic volume determination underestimated the RV volume obtained from cast with an almost constant ratio averaging 0.755 as a result of the exclusion of the RV outflow tract volume from the echocardiographic model. We conclude that a crescentic model allows accurate echocardiographic determination of RV volume.
authors.affiliation: Department of Medicine, Roger Williams General Hospital, Providence, RI 02908.
authors.forename: N M
authors.initials: NM
authors.lastname: Aebischer
authors.forename: F
authors.initials: F
authors.lastname: Czegledy
mesh_terms: D000465:Algorithms; D000818:Animals; D004285:Dogs; D004452:Echocardiography; D006352:Heart Ventricles / Q000033:anatomy & histology*; D016018:Least-Squares Analysis; D013318:Stroke Volume; D016276:Ventricular Function