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Updated: Sep 30, 2025

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
Published on: October 16, 2021
CT Planning prior to Transcatheter Mitral Valve Replacement (TMVR)
Linda Heiser1, Robin F Gohmann1, Thilo Noack2
1Department of Diagnostic and Interventional Radiology, Heart Center Leipzig, Leipzig, Germany.
Pre-procedural computed tomography (CT) is crucial for transcatheter mitral valve replacement (TMVR) planning. CT accurately measures the mitral annulus and visualizes critical anatomy, improving prosthesis sizing and procedural success for high-risk patients.
Area of Science:
- Cardiology
- Radiology
- Medical Imaging
Background:
- Transcatheter mitral valve replacement (TMVR) is an option for severe mitral regurgitation in high-risk patients.
- Direct visualization of the mitral annulus is not possible during TMVR.
- Comprehensive pre-interventional planning is essential for successful TMVR.
Purpose of the Study:
- To assess the role of pre-procedural computed tomography (CT) in planning transcatheter mitral valve replacement (TMVR).
Main Methods:
- Review of guidelines (ESC, AHA/ACC), meta-analyses, and original research using terms 'TMVR' or 'TMVI' and 'CT'.
- Inclusion of authors' clinical experience in the assessment.
- Screening and evaluation of relevant scientific literature.
Main Results:
- CT enables accurate mitral annulus measurement with high spatial and temporal resolution.
- CT provides detailed information on valvular and outflow tract anatomy, calcifications, papillary muscles, and left ventricle.
- CT aids in visualizing the interventional access route.
Conclusions:
- CT is central to pre-interventional assessment for TMVR, complementing echocardiography.
- CT precisely depicts the left ventricular outflow tract (LVOT), offering information difficult to obtain otherwise.
- CT facilitates accurate prosthesis sizing and planning for TMVR procedures.
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