Reproducibility of Cardiac Computed Tomography Classifications of Hypoattenuated Thickening and Peridevice Leak Following Left Atrial Appendage Closure.

Despite only minimal training of one rater, overall high levels of inter- and intra-rater agreement and reliability were observed across the chosen algorithms for interpretation of HAT and PDL following Watchman FLX LAAC. Prognostic implications of the included variables are to be explored in future trials and registries.