Last Updated on January 17, 2025 by Analgesia team
RV Decomposition in Medical Term
RV decomposition is a method of analyzing the motion of the heart’s right ventricle (RV) along specific directions, such as radial, circumferential, and longitudinal. This analysis can help us understand the components of 3D motion that are linked to a specific cardiac condition.
Here are some details about RV decomposition:
Directions
The radial direction is perpendicular to the RV, the longitudinal direction points toward the apex, and the circumferential direction is perpendicular to the longitudinal direction and tangential to the RV surface.
Estimation
The radial direction is easy to obtain, but the longitudinal and circumferential directions are more difficult to estimate. The longitudinal direction can be approximated by estimating the shortest path between each point and the apex, and then computing the tangent at the starting point. The circumferential direction can be estimated by taking the cross product of the radial direction and the long axis.
Quantification
RV decomposition can be used to quantify end-systolic volumes and ejection fractions (EFs) for each motion component. It can also be used to calculate regional and segmental metrics.
ReVISION method
The Right VentrIcular Separate wall motIon quantificatiON (ReVISION) method is a 3D echocardiography-based solution that uses RV decomposition to assess the relative contribution of the three main mechanisms to global RV function.