Functional DSCT assessment of tricuspid regurgitation: AROA reproducibility and comparison with 3D TEE

Abstract Funding Acknowledgements Type of funding sources: None. onbehalf Minneapolis Heart Institute Foundation Background Tricuspid regurgitation (TR) assessment by echocardiography is often challenging. Functional dual-source CT (DSCT) with third-generation scanners allows accurate evaluation leaflet anatomy and mobility. Purpose Investigate the reproducibility tricuspid anatomical regurgitant orifice area (AROA) DSCT, its correlation TR quantification 3D TEE. Methods We evaluated patients symptomatic referred for transcatheter repair. DSCT (SOMATOM Force [Siemens, Erlangen, Germany]) TEE was performed on same day as part our institutional registry. scans were retrospective ECG-gated, a contrast protocol to enhance right heart. The AROA assessed in 20 patients. compared severity (5-grade classification) VCA (Panel 1). Results included 60 (Table). had excellent intra interobserver reliability (ICC 0.99 [0.97, 0.99] [0.96, 0.99]). found stepwise increase from moderate torrential 2A). Of patients, feasible 39; those, we an linear 2B). Conclusions reproducible, showed massive correlated Baseline Patient Characteristics All (n = 60) Age, years 82 ± 7 BSA, m2 1.8 0.2 NYHA III-IV, n(%) 42 (70) Atrial Fibrilation 55 (91) Hypertension 44 (73) Pulmonary 34 (56) Chronic Kidney Disease 25 (44) Coronary Artery 17 (28) Lung 14 (23) Permanent Pacemaker 13 (21) Diabetes Mellitus 10 (17) Mitral Valve Repair (MitraClip) 9 (15) Replacement (12) 3 (5) Aortic 5 (8) Values are mean SD n (%). BSA body surface area. Figure. Panels