title: Use of cardiac CT angiography to assist in the diagnosis and treatment of aortic prosthetic paravalvular leak: a practical guide.
abstract: Percutaneous repair of aortic paravalvular regurgitation can help avoid the need for repeat valve surgery. Although the initial diagnosis of paravalvular regurgitation is usually made with echocardiography, cardiac CT angiography helps to determine the site and morphology of these leaks. The utility of CT is highly dependent on the quality of the data. Herein, we describe a systematic approach to image acquisition and interpretation of cardiac CT angiography in patients with aortic paravalvular regurgitation, which integrates findings from echocardiography. This approach can be used to minimize inaccuracies in the diagnosis and enhance the procedural success for percutaneous repair of aortic paravalvular regurgitation.
authors.affiliation: The Minneapolis Heart Institute and Foundation, Suite 300, 920 East 28th Street, Minneapolis, MN 55407, USA. Electronic address: jrlesser1@gmail.com.
authors.forename: John R
authors.initials: JR
authors.lastname: Lesser
authors.affiliation: The Minneapolis Heart Institute and Foundation, Suite 300, 920 East 28th Street, Minneapolis, MN 55407, USA; The Children's Heart Clinic at Children's Hospitals and Clinics of Minnesota, Minneapolis, MN, USA.
authors.forename: B Kelly
authors.initials: BK
authors.lastname: Han
authors.affiliation: The Minneapolis Heart Institute and Foundation, Suite 300, 920 East 28th Street, Minneapolis, MN 55407, USA.
authors.forename: Marc
authors.initials: M
authors.lastname: Newell
authors.affiliation: The Minneapolis Heart Institute and Foundation, Suite 300, 920 East 28th Street, Minneapolis, MN 55407, USA.
authors.forename: Robert S
authors.initials: RS
authors.lastname: Schwartz
authors.affiliation: The Minneapolis Heart Institute and Foundation, Suite 300, 920 East 28th Street, Minneapolis, MN 55407, USA.
authors.forename: Wesley
authors.initials: W
authors.lastname: Pedersen
authors.affiliation: The Minneapolis Heart Institute and Foundation, Suite 300, 920 East 28th Street, Minneapolis, MN 55407, USA.
authors.forename: Paul
authors.initials: P
authors.lastname: Sorajja
mesh_terms: D001021:Aortic Valve / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D006328:Cardiac Catheterization; D017023:Coronary Angiography / Q000379:methods*; D018618:Echocardiography, Doppler, Color; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects* / Q000295:instrumentation; D006801:Humans; D064847:Multimodal Imaging; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D011857:Radiographic Image Interpretation, Computer-Assisted; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
keywords: Aortic valve prosthesis; Cardiac CT; Paravalvular regurgitation; Structural heart disease