ACR Appropriateness Criteria^® Imaging for Transcatheter Aortic Valve Replacement

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Aortic stenosis (AS) is a prevalent valvular heart disease in aging populations.
• Severe symptomatic AS necessitates valve replacement, with transcatheter aortic valve replacement (TAVR) emerging as a viable alternative to surgery for high- and intermediate-risk patients.

Purpose of the Study:

• To review the role of advanced imaging in planning and optimizing transcatheter aortic valve replacement (TAVR) procedures.
• To highlight the importance of imaging in reducing procedural complications and improving patient outcomes.

Main Methods:

• Review of current literature on imaging modalities for TAVR, including echocardiography, CT, and MR angiography.
• Analysis of the American College of Radiology Appropriateness Criteria and their evidence-based guideline development methodology.
• Application of established methodologies like RAND/UCLA and GRADE for evaluating imaging and treatment appropriateness.

Main Results:

• Pre-procedural imaging (echocardiography, CT) is crucial for TAVR planning and device selection.
• 3-D cross-sectional imaging significantly reduces complications such as vascular injury, paravalvular regurgitation, and coronary obstruction.
• MR angiography plays a complementary role in procedure planning.

Conclusions:

• Advanced cross-sectional imaging is essential for successful TAVR, enabling personalized procedure planning and device selection.
• Adherence to evidence-based guidelines, like the American College of Radiology Appropriateness Criteria, ensures optimal patient care.
• Imaging advancements contribute to minimizing TAVR-related complications and improving clinical outcomes.