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Comparison of Manual and Automated Preprocedural Segmentation Tools to Predict the Annulus Plane Angulation and C-Arm Positioning for Transcatheter Aortic Valve Replacement |
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| Authors: | Verena Veulemans Tobias Zeus Laura Kleinebrecht Jan Balzer Katharina Hellhammer Amin Polzin Patrick Horn Alexander Blehm Jan-Philipp Minol Patric Kr?pil Ralf Westenfeld Tienush Rassaf Artur Lichtenberg Malte Kelm |
| Institution: | 1Department of Medicine, Division of Cardiology, Pulmonary Diseases, Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany;2Clinic for Cardiovascular Surgery, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany;3Institute of Radiology, University Hospital Düsseldorf, Düsseldorf, Germany;University of Messina, ITALY |
| Abstract: | BackgroundPreprocedural manual multi-slice-CT-segmentation tools (MSCT-ST) define the gold standard for planning transcatheter aortic valve replacement (TAVR). They are able to predict the perpendicular line of the aortic annulus (PPL) and to indicate the corresponding C-arm angulation (CAA). Fully automated planning-tools and their clinical relevance have not been systematically evaluated in a real world setting so far.ConclusionsA-MSCT-analysis provides precise preprocedural information on CAA for optimal visualization of the aortic annulus compared to the M-MSCT gold standard. Intraprocedural application of this information during TAVR significantly reduces the levels of contrast and radiation exposure.Trial RegistrationClinicalTrials.gov NCT01805739 |
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