Abstract 8437: Volumetric Studies of the Right Ventricle Using Anatomically Accurate Expandable Latex Models
Background: Right ventricular (RV) anatomy is far more complex than left ventricular anatomy due to its challenging three-dimensional shape. Recently, TomTec imaging has developed new software known as 4D RV-Function. It is the first software for 3D echo data. This program allows one to study and envisage RV function and RV anatomy.
Methods: Clay molds were made from the RVs of 5 sheep hearts. Each mold was layered with liquid latex to form a sac of the right ventricle. A hole was cut at the top of each latex RV model and a tube placed within it for attaching to the pulsatile pump. 4D images were acquired using a GE Vivid I9 ultrasound system. The obtained 4D images were then entered into TomTec's 4D RV Function imaging program to execute the volumes.
Results: At all steady states, there was a good correlation between the volumes from TomTec's 4D RV Function analysis program and the actual volumes that were emptied out of the heart at systole and diastole (R=0.93, p<0.001).
Conclusions: Volumes of different right ventricle models could be defined quite accurately using TomTec's 4D RV Function program. This will prove useful in the future because it will not only increase diagnostic confidence, but it will ultimately improve the management and treatment of patients with congenital heart disease, heart failure, and pulmonary hypertension.
- © 2011 by American Heart Association, Inc.