Phantom Study of an Ultrasound Guidance System forTranscatheter Aortic Valve Implantation

Transcatheter aortic valve implantation (TAVI) is a safe and effective treatment for aortic stenosis in patients unsuitable for conventional surgery [1]. As a result, this stent-based technique for delivery of a bioprosthetic valve has been used in over 40,000 patients worldwide [2]. This minimally invasive technique relies largely on single-plane fluoroscopy, with only gross structures visible [3]. In addition, the contrast agents injected into the aortic root during fluoroscopic guidance are nephrotoxic and can increase a patient's risk of acute kidney injury[4–7].

Source: Computerized Medical Imaging and Graphics - December 15, 2014 Category: Radiology Authors: A. Jonathan McLeod, Maria E. Currie, John T. Moore, Daniel Bainbridge, Bob B. Kiaii, Michael W.A. Chu, Terry M. Peters Source Type: research