Novel Computed Tomography Variables for Assessing Tricuspid Valve Morphology: Results from the TRIMA (Tricuspid Regurgitation IMAging) Study

Journal of Clinical Medicine

Luka Vitez¹  Simona Mega²  Valeria Cammalleri²  Annunziata Nusca²  Aurelio De Filippis²  Maria Caterina Bono²  Edoardo Nobile²  Francesco Grigioni²  Nino Cocco²  Myriam Carpenito²  Domenico De Stefano³  Carlo Cosimo Quattrocchi⁴  Gian Paolo Ussia⁴ 

[1] Department of Cardiology, University Medical Center Ljubljana, 1000 Ljubljana, Slovenia;Unit of Cardiovascular Science, Department of Medicine, Campus Bio-Medico University, 00128 Rome, Italy;Unit of Diagnostic Imaging and Interventional Radiology, Campus Bio-Medico University, 00128 Rome, Italy;Unit of Interventional Cardiology, Department of Medicine, Campus Bio-Medico University, 00128 Rome, Italy;

关键词: tricuspid valve;    transcatheter tricuspid valve intervention;    commissures;    computed tomography;   

DOI  :  10.3390/jcm11102825

来源: DOAJ

【 摘 要 】

Background: Computed tomography (CT) is the recommended imaging technique for defining the anatomical suitability for current transcatheter technologies and planning tricuspid valve (TV) intervention. The aim of the Tricuspid Regurgitation IMAging (TRIMA) study was to assess the geometrical characteristics of the TV complex using novel CT parameters. Methods: This prospective, single-center study enrolled 22 consecutive patients with severe tricuspid regurgitation, who underwent a cardiac CT study dedicated to the right chambers. The following variables were obtained: annulus area and perimeter, septal-lateral and antero-posterior diameters, tenting height, and anatomical regurgitant orifice area. Moreover, the following novel annular parameters were assessed: distance between commissures, distance between TV centroid and commissures, and angles between centroid and commissures. Results: A significant phasic variability during the cardiac cycle existed for all variables except for eccentricity, angles, and distance between the postero-septal and antero-posterior commissure and distance between the centroid and antero-posterior commissure. There was a significant relationship between the TV annulus area and novel annular parameters, except for annular angles. Additionally, novel annular variables were found to predict the annulus area. Conclusions: These novel additional variables may provide an initial platform from which the complexity of the TV annular morphology can continue to be better understood for further improving transcatheter therapies.

【 授权许可】

Unknown