title: "Smoke ring" sign in valvular incompetence of Starr-Edwards prostheses.
mesh_terms: D000790:Angiocardiography; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D013927:Thrombosis / Q000150:complications