title: Successful nitinol stent implantation in a large coronary aneurysm: post-interventional patency assessment by magnetic resonance imaging.
abstract: Nitinol stents are thought to exhibit reduced occurrence of artifacts and may be suitable for magnetic resonance imaging (MRI) evaluation of stent localization and in-stent patency even in coronary-sized stent grafts. A 54-year-old male patient presented with a large coronary post-stenotic aneurysm of the right coronary artery (RCA) beside significant stenoses of the left circumflex coronary artery (LCX) and the left anterior descending coronary artery (LAD) with aneurysm formation. After implantation of stent grafts to the LAD and LCX, two polymermembrane-covered nitinol stent grafts were placed into the RCA. A control MR examination 7 days following the RCA intervention showed successful occlusion of the former aneurysm, no post-interventional endoleak, and bright signal within the stent indicating stent patency. Thus, coronary MRI after nitinol stent implantation in coronary aneurysms is feasible for post-interventional early imaging control at least as far as the exclusion of possible endoleaks is concerned.
authors.affiliation: Department of Cardiology, West German Heart Center Essen, University of Duisburg-Essen, Essen, Germany. Frank.Breuckmann@medizin.uni-essen.de
authors.forename: Frank
authors.initials: F
authors.lastname: Breuckmann
authors.forename: Kai
authors.initials: K
authors.lastname: Nassenstein
authors.forename: Dirk
authors.initials: D
authors.lastname: Boese
authors.forename: Dieter
authors.initials: D
authors.lastname: Opherk
authors.forename: Harald H
authors.initials: HH
authors.lastname: Quick
authors.forename: Jörg
authors.initials: J
authors.lastname: Barkhausen
authors.forename: Raimund
authors.initials: R
authors.lastname: Erbel
mesh_terms: D000497:Alloys; D019917:Blood Vessel Prosthesis Implantation; D003287:Contrast Media; D003323:Coronary Aneurysm / Q000473:pathology / Q000601:surgery*; D003331:Coronary Vessels / Q000473:pathology* / Q000601:surgery; D019786:Gadolinium DTPA; D006083:Graft Occlusion, Vascular / Q000175:diagnosis*; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D015607:Stents; D014654:Vascular Patency
chemical_list: D000497:Alloys; D003287:Contrast Media; C013616:nitinol; D019786:Gadolinium DTPA