title: An ultrasonic technique for imaging the ventricle in three dimensions and calculating its volume.
mesh_terms: D000818:Animals; D001698:Biomedical Engineering; D002417:Cattle; D004285:Dogs; D006352:Heart Ventricles / Q000033:anatomy & histology*; D012756:Sheep; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography