3-Dimensional Echocardiographic Analysis of the Tricuspid Annulus Provides New Insights Into Tricuspid Valve Geometry and Dynamics.
3D echocardiography
tricuspid annulus
tricuspid dimensions
tricuspid valve
Journal
JACC. Cardiovascular imaging
ISSN: 1876-7591
Titre abrégé: JACC Cardiovasc Imaging
Pays: United States
ID NLM: 101467978
Informations de publication
Date de publication:
03 2019
03 2019
Historique:
received:
15
02
2017
revised:
07
08
2017
accepted:
14
08
2017
pubmed:
21
11
2017
medline:
14
1
2020
entrez:
21
11
2017
Statut:
ppublish
Résumé
The authors used transthoracic 3-dimensional transthoracic echocardiography (3DE) to characterize tricuspid annulus (TA) geometry and dynamics in healthy volunteers. Accurate sizing of the TA is essential for planning tricuspid annuloplasty and for implantation of new percutaneous tricuspid devices. 3DE of the TA from 209 healthy volunteers was analyzed using custom software to measure TA area, perimeter, circularity, and dimensions at end diastole (equals tricuspid valve closure), mid-systole, end systole, and late diastole. TA intercommissural distances were measured at mid-systole. For comparison, TA diameters were measured at the same time points on multiplanar reconstruction of the 3DE datasets and on 2-dimensional transthoracic echocardiography (2DE) apical 4-chamber and right ventricular focused views. In 13 subjects with both 3DE and computed tomography, TA parameters were compared. 3DE TA area, perimeter, and dimensions were largest in late diastole and smallest at mid-systole/end systole. Normal tricuspid valve parameters in end diastole were 8.6 ± 2.0 cm Gender and body size should be taken into account to identify the reference values of TA dimensions. 2DE underestimates TA dimensions.
Sections du résumé
OBJECTIVES
The authors used transthoracic 3-dimensional transthoracic echocardiography (3DE) to characterize tricuspid annulus (TA) geometry and dynamics in healthy volunteers.
BACKGROUND
Accurate sizing of the TA is essential for planning tricuspid annuloplasty and for implantation of new percutaneous tricuspid devices.
METHODS
3DE of the TA from 209 healthy volunteers was analyzed using custom software to measure TA area, perimeter, circularity, and dimensions at end diastole (equals tricuspid valve closure), mid-systole, end systole, and late diastole. TA intercommissural distances were measured at mid-systole. For comparison, TA diameters were measured at the same time points on multiplanar reconstruction of the 3DE datasets and on 2-dimensional transthoracic echocardiography (2DE) apical 4-chamber and right ventricular focused views. In 13 subjects with both 3DE and computed tomography, TA parameters were compared.
RESULTS
3DE TA area, perimeter, and dimensions were largest in late diastole and smallest at mid-systole/end systole. Normal tricuspid valve parameters in end diastole were 8.6 ± 2.0 cm
CONCLUSIONS
Gender and body size should be taken into account to identify the reference values of TA dimensions. 2DE underestimates TA dimensions.
Identifiants
pubmed: 29153573
pii: S1936-878X(17)30902-6
doi: 10.1016/j.jcmg.2017.08.022
pii:
doi:
Types de publication
Comparative Study
Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
401-412Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2019 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.