title: Thebesian valve imaging with electron beam CT angiography: implications for resynchronization therapy.
abstract: We report visualization of a prominent coronary sinus os valve (Thebesian valve), by electron beam computed tomographic angiography, which impeded an endocardial approach to left ventricular pacing. Resynchronization therapy was therefore performed with an epicardial approach to left ventricular lead placement. Electron beam computed tomographic angiography can provide detailed information for coronary sinus instrumentation, including anomalies potentially affecting the approach to resynchronization therapy.
authors.affiliation: Division of Cardiology, Harbor-UCLA Research and Education Institute, Torrance, California 90502-2064, USA.
authors.forename: Jerold S
authors.initials: JS
authors.lastname: Shinbane
authors.forename: Marc J
authors.initials: MJ
authors.lastname: Girsky
authors.forename: Songshou
authors.initials: S
authors.lastname: Mao
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Budoff
mesh_terms: D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D003287:Contrast Media; D017023:Coronary Angiography / Q000379:methods*; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging*; D004562:Electrocardiography; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D010138:Pacemaker, Artificial; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media