Detection of carotid air emboli.
D000818:Animals; D001783:Blood Flow Velocity / Q000295:instrumentation; D002339:Carotid Arteries; D004285:Dogs; D004562:Electrocardiography; D004569:Electroencephalography; D004618:Embolism, Air / Q000175:diagnosis*; D002542:Intracranial Embolism and Thrombosis / Q000517:prevention & control*; D008722:Methods; D013637:Tape Recording