Cardiac MR guided TAVR effective option to CT-guided TAVR

Though Computed tomography (CT) is recommended for guiding TAVR, it is associated with limitations. CMR is a promising alternative, and studies are required to compare the effectiveness of CMR- versus CT-guided TAVR ( transcatheter aortic valve replacement). In a latest study published in Circulation, Dr. Martin Reindl recommended Cardiac magnetic resonance (CMR) as an ALTERNATIVE to TAVR planning. In this study, the team reported CMR-guided TAVR as non-inferior to CT-guided TAVR pertaining to the device implantation success.
For guiding TAVR, CT is recommended, but since TAVR candidates have chronic kidney disease (CKD), using iodinated contrast media poses a limitation. CMR could be a promising alternative but requires data to clarify "How effective is CMR- versus CT-guided TAVR?" This background was further investigated in the present study. Researchers conducted a trial at two Austrian heart centres.
Based on inclusion (severe symptomatic aortic stenosis) and exclusion criteria (contraindication to CMR, CT, or TAVR, a life expectancy < 1 year, CKD 4 or 5), patients were evaluated for TAVR. These were randomized to a 1:1 ratio for CMR- or CT-guiding. The primary outcomes measured were, absence of procedural mortality, correct positioning of a single prosthetic valve and proper prosthetic valve performance.
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