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Am J Physiol Heart Circ Physiol (June 17, 2005). doi:10.1152/ajpheart.00442.2005
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Submitted on May 2, 2005
Accepted on June 16, 2005

Three-dimensional Systolic Kinematics of the Right Ventricle

Idith Haber1*, Dimitris N Metaxas2, Tal Geva1, and Leon Axel3

1 Cardiology, The Children's Hospital and Harvard Medical School, Boston, MA, USA
2 Computer Science, Rutgers University, New Brunswick, NJ, USA
3 Radiology, New York University, New York, NY, USA

* To whom correspondence should be addressed. E-mail: Idith.Haber{at}tch.harvard.edu.

The right ventricle (RV) of the heart is responsible for pumping blood to the lungs. Its kinematics is not as well-understood as that of the left ventricle (LV) due to its thin wall and asymmetric geometry. In this paper, the combination of tagged magnetic resonance imaging (MRI) and 3D image processing techniques were used to reconstruct three-dimensional RV-LV motion and deformation. The reconstructed models were used to quantify the 3D global and local deformation of the ventricles in a set of normal subjects. When compared with the LV, the RV exhibited a similar twisting pattern, a more longitudinal strain pattern, and a greater amount of displacement.




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