Morphological and Dynamic Analysis of the Right Atrioventricular Junction in Healthy Subjects with 4D Computed Tomography

Autor: Jérôme Jouan, Damian Craiem, Ignacio Masari, Virginie Bliah, Gilles Soulat, Elie Mousseaux
Rok vydání: 2022
Předmět:
Zdroj: Cardiovascular Engineering and Technology. 13:699-711
ISSN: 1869-4098
1869-408X
DOI: 10.1007/s13239-021-00604-0
Popis: To improve knowledge of the tricuspid valve and right atrioventricular junction (RAVJ) coupling, four-dimensional (4D) imaging is mandatory (3D + time). Based on multiphase cardiac-volume computed tomography (CT) and innovative 4D analysis, we proposed to assess dynamical features of tricuspid annulus (TA) in relation to the right ventricle (RV) and right atrial (RA) functions.Cardiac-volume CT data sets through time were obtained in 30 healthy patients (Male 57%, mean age 57 ± 11 years). Using an in-house software, 3D semi-automated delineation of 18 points around TA perimeter were defined through 10 cardiac phases within RR interval and used to calculate TA features such as 3D/2D areas, perimeters, 360°-diameters and vertical deformation. RV and RA inner contours were also delineated. Bi-dimensional parameters were compared with multiplanar reconstruction (MPR) measurements.TA was elliptical in horizontal projection with a maximal eccentricity index (EcICardiac-volume CT improves physiological knowledge of the relationships between the RAVJ components in healthy subjects.
Databáze: OpenAIRE
Externí odkaz: