title: Ultrasonic catheters give cardiologists boost in observing internal blood vessels.
authors.forename: M F
authors.initials: MF
authors.lastname: Goldsmith
mesh_terms: D001808:Blood Vessels / Q000000981:diagnostic imaging*; D002404:Catheterization / Q000295:instrumentation*; D003327:Coronary Disease / Q000000981:diagnostic imaging; D006801:Humans; D014463:Ultrasonography / Q000295:instrumentation*