Abstract
Multidetector computed tomography (MDCT) is currently the imaging technique of choice for the assessment of tricuspid valve (TV) annulus geometry and relationship with the right coronary artery (RCA). However, standardized protocols with a full 3D analysis are still lacking to plan percutaneous procedures for functional tricuspid regurgitation (FTR). A novel customized 4-dimensional tool based on MDCT data was developed and provided accurate information on TV annulus morphology (3D-perimeter, 2D-Area, maximum and minimum diameters, eccentricity index), function and distance to the RCA, crucial for patient selection of percutaneous TV procedures.
Highlights
New percutaneous procedures for the treatment of functional tri cuspid regurgitation (FTR) mostly target the tricuspid valve (TV) an nulus in order to re-shape or re-size it either through stitches or cork screws
We devel oped a novel Multidetector computed tomography (MDCT)-based software, designed to provide full 3D-ana lysis of the TV and overcome the above-mentioned limitations. We applied this software in patients with and without severe FTR to assess i) 3D TV annular geometry and dynamics during the cardiac cycle and ii) the spatial relationship between TV annulus and right coronary artery (RCA)
The comparison performed between FTR patients and controls confirmed that FTR is characterized by a significant dilatation of TV annulus, with larger 3D-perimeter, 2D-area, Dmax and Dmin (p-group, all
Summary
New percutaneous procedures for the treatment of functional tri cuspid regurgitation (FTR) mostly target the tricuspid valve (TV) an nulus in order to re-shape or re-size it either through stitches or cork screws. Standardized protocols with a full 3D analysis are still lacking to plan percutaneous procedures for FTR and volumetric datasets are still used to obtain 2D cut-planes.[2,3] We devel oped a novel MDCT-based software, designed to provide full 3D-ana lysis of the TV and overcome the above-mentioned limitations. We applied this software in patients with and without severe FTR to assess i) 3D TV annular geometry and dynamics during the cardiac cycle and ii) the spatial relationship between TV annulus and RCA
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