title: SCCT expert consensus document on computed tomography imaging before transcatheter aortic valve implantation (TAVI)/transcatheter aortic valve replacement (TAVR).
abstract: Computed tomography (CT) plays an important role in the workup of patients who are candidates for implantation of a catheter-based aortic valve, a procedure referred to as transcatheter aortic valve implantation (TAVI) or transcatheter aortic valve replacement (TAVR). Contrast-enhanced CT imaging provides information on the suitability of the peripheral access vessels to accommodate the relatively large sheaths necessary to introduce the prosthesis. CT imaging also provides accurate dimensions of the ascending aorta, aortic root, and aortic annulus which are of importance for prosthesis sizing, and initial data indicate that compared with echocardiographic sizing, CT-based sizing of the prosthesis may lead to better results for postprocedural aortic valve regurgitation. Finally, CT permits one to predict appropriate fluoroscopic projections which are oriented orthogonal to the aortic valve plane. This consensus document provides recommendations about the use of CT imaging in patients scheduled for TAVR/TAVI, including data acquisition, interpretation, and reporting.
authors.affiliation: Department of Cardiology, University of Erlangen, Ulmenweg 18, 91054 Erlangen, Germany. stephan.achenbach@uk-erlangen.de
authors.forename: Stephan
authors.initials: S
authors.lastname: Achenbach
authors.forename: Victoria
authors.initials: V
authors.lastname: Delgado
authors.forename: Jörg
authors.initials: J
authors.lastname: Hausleiter
authors.forename: Paul
authors.initials: P
authors.lastname: Schoenhagen
authors.forename: James K
authors.initials: JK
authors.lastname: Min
authors.forename: Jonathon A
authors.initials: JA
authors.lastname: Leipsic
mesh_terms: D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000601:surgery*; D006328:Cardiac Catheterization / Q000592:standards*; D006350:Heart Valve Prosthesis / Q000592:standards; D019918:Heart Valve Prosthesis Implantation / Q000592:standards*; D006801:Humans; D038622:Internationality; D017410:Practice Guidelines as Topic; D011300:Preoperative Care / Q000592:standards; D017755:Prosthesis Fitting; D025321:Surgery, Computer-Assisted / Q000592:standards*; D014057:Tomography, X-Ray Computed / Q000592:standards*