title: An Intracardiac UFO.
authors: Paul S
authors: PS
authors: Pagel
mesh_terms: D016477:Artifacts; D004452:Echocardiography / Q000295:instrumentation / Q000379:methods / Q000592:standards; D017548:Echocardiography, Transesophageal / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D005260:Female; D019918:Heart Valve Prosthesis Implantation / Q000295:instrumentation / Q000379:methods; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000601:surgery; D016343:Monitoring, Intraoperative / Q000295:instrumentation / Q000379:methods* / Q000592:standards