title: Role of Imaging in Transcatheter Aortic Valve Replacement.
abstract: Transcatheter aortic valve replacement (TAVR) has emerged as an effective treatment alternative in patients with severe aortic stenosis (AS) who are deemed surgically high-risk or ineligible for surgery. Pre-procedural imaging, in particular computed tomography (CT), plays an integral part in the planning and performance of TAVR and is crucial for a successful treatment. Novel technological advances in CT include high-pitch, low kV acquisitions, and iterative reconstruction resulting in high image quality at substantially reduced scan duration, contrast volume, and radiation exposure. Given the high spatial and temporal resolution of the acquisitions, CT angiography provides critical information on the eligibility for the peripheral vascular access, aortic root assessment, as well as the aortic annulus measurements, including the coronary ostia and concomitant cardiac pathology. Pre-procedural CT imaging is key for appropriate device size selection to minimize peri-procedural complications and optimize procedural success. In this article, we review the current state of imaging in the pre-interventional setting of TAVR with a special emphasis on CT.
authors: Department of Diagnostic and Interventional Radiology, University of Tuebingen, Hoppe-Seyler-Str. 3, 72076, Tuebingen, Germany.
authors: Corinna
authors: C
authors: Storz
authors: Department of Cardiology, University of Tuebingen, Tuebingen, Germany.
authors: Tobias
authors: T
authors: Geisler
authors: Department of Diagnostic and Interventional Radiology, University of Tuebingen, Hoppe-Seyler-Str. 3, 72076, Tuebingen, Germany.
authors: Mike
authors: M
authors: Notohamiprodjo
authors: Department of Diagnostic and Interventional Radiology, University of Tuebingen, Hoppe-Seyler-Str. 3, 72076, Tuebingen, Germany.
authors: Konstantin
authors: K
authors: Nikolaou
authors: Department of Diagnostic and Interventional Radiology, University of Tuebingen, Hoppe-Seyler-Str. 3, 72076, Tuebingen, Germany. fabian.bamberg@med.uni-tuebingen.de.
authors: Fabian
authors: F
authors: Bamberg
keywords: Aortic stenosis; Computed tomography; Transcatheter aortic valve implantation (TAVI); Transcatheter aortic valve replacement (TAVR)