Retrospectively, 3D multi-slice computed tomography reconstructions were generated using OsiriX and the reliability evaluated regarding inter- and intraobserver variability, intermodality correlation and estimation of the clinical impact on transcatheter aortic valve implantation sizing. We report validation of OsiriX® -an image processing freeware-to measure multi-slice computed tomography-derived annulus diameters for preprocedural transcatheter aortic valve implantation planning.Ī total of 137 patients (82 ± 6.5 years, 42.3% male, logistic EuroSCORE 24.1 ± 14.2%) with severe aortic stenosis at high surgical risk underwent transcatheter aortic valve implantation assessment: transoesophageal echocardiography, angiography and multi-slice computed tomography.
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