PO-03-140 CARDIAC MAGNETIC RESONANCE IMAGING VERSUS CARDIAC COMPUTED TOMOGRAPHY ANGIOGRAPHY FOR LEFT ATRIAL APPENDAGE SIZING AND THROMBUS ASSESSMENT PRIOR TO DEVICE CLOSURE
نویسندگان
چکیده
Preoperative imaging for left atrial appendage closure (LAAC) is essential LAA sizing and thrombus assessment. Transesophageal echocardiography (TEE) cardiac computed tomography angiography (CCTA) have been utilized to date this purpose. During the recent global iodine contrast shortage, magnetic resonance (CMR) was as an alternative modality. The purpose of study assess CMR vs CCTA preoperative assessment prior LAAC. This retrospective conducted at Ohio State University Wexner Medical Center included all patients who underwent or LAAC with Watchman FLX Amplatzer Amulet between May 2022 October 2022. Primary measures were accuracy predicted device size, detection/exclusion, mean difference in maximum ostial diameter depth compared intraoperative TEE. An area-derived approach obtain order prevent oversizing highly elliptical shapes. radius (r) calculated based on design. For octadecagonal FLX, area = r2 x 3.0782. circular Amulet, 3.1416. 75 LAAC, 25 (33%) 50 (67%) respectively. Demographics notable age ± 7 years, 32 (43%) females, 31 kg/m2 body mass index, 53 9% ventricular ejection fraction, 4 1 CHA2DS2-VASc. 64 (88%) 9 (12%) implantation There no significant size (CMR: 16 (64%) CCTA: 26 (70%) patients, p=0.604) 22 46 (92%) p=0.680). Among 57 (76%) cases completed TEE guidance where measurements obtained, there 2.9 2.0 2.6 2.5 mm, p=0.699) 9.5 8.5 10.8 7.5 p=0.620) Figure demonstrates using multiplanar reconstruction oblique views (A-C) (D-F). comparable
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ژورنال
عنوان ژورنال: Heart Rhythm
سال: 2023
ISSN: ['1556-3871', '1547-5271']
DOI: https://doi.org/10.1016/j.hrthm.2023.03.878