Computed tomography reference dimensions for identification of stented surgical mitral bioprostheses valve size.

Details

Serval ID
serval:BIB_57296B3A1D48
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Computed tomography reference dimensions for identification of stented surgical mitral bioprostheses valve size.
Journal
Journal of cardiovascular computed tomography
Author(s)
Tzimas G., Haugan D., Akodad M., Sathananthan J., Meier D., Qanadli S.D., Webb J.G., Blanke P.
ISSN
1876-861X (Electronic)
ISSN-L
1876-861X
Publication state
Published
Issued date
2022
Peer-reviewed
Oui
Volume
16
Number
6
Pages
517-523
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Selection of the transcatheter heart valve size for a mitral valve-in-valve procedure is based on the type and manufacturer's labelled size. However, accurate information of surgical heart valve (SHV) size may not be available in the patient's medical record. The purpose of this study is to establish reference data for computed tomography (CT) dimensions of commonly used mitral SHV in order to determine the manufacturer's labelled size from a cardiac CT data set.
CT datasets of 105 patients with surgical mitral bioprosthesis and available manufacturer labeled datasets were included in the analysis. CT derived valve dimensions were assessed by two observers using multiplanar reformats aligned with the basal sewing ring. A circular region of interest was used in a standardized fashion to minimize influence of image acquisition and reconstruction parameters. Interobserver variability was assessed by Bland-Altman analysis.
The CT-derived dimensions were stratified by valve size and type, and SHV properties were demonstrated for 5 common valve types. Variability of measurements was small and inter-observer limits of agreement were narrow. Stratified by SHV type, no overlap was noted for CT-derived dimensions among different SHV sizes . A reference table of CT characteristics of surgical mitral bioprosthesis types was created.
The study provides reference CT data for determining the manufacturers' labeled SHV size across a range of commonly used mitral SHVs. The findings will be important to help identify types of surgical mitral bioprosthesis utilizing CT characteristics for patients without SHV size documentation.
Keywords
Humans, Bioprosthesis, Mitral Valve/diagnostic imaging, Mitral Valve/surgery, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation/adverse effects, Heart Valve Prosthesis Implantation/methods, Prosthesis Design, Predictive Value of Tests, Tomography, X-Ray Computed, CT sizing, Mitral valve-in-valve, Transcatheter valve replacement
Pubmed
Web of science
Create date
02/08/2022 13:19
Last modification date
21/11/2023 7:11
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