How to explore the patency of the carotid arteries and their collateral circulation by volumetric pulse recordings from both ear lobes. Studies in normal persons.
D002339:Carotid Arteries / Q000502:physiology*; D002941:Circle of Willis / Q000098:blood supply; D003097:Collateral Circulation; D004423:Ear / Q000098:blood supply; D006439:Hemodynamics; D006801:Humans; D008722:Methods; D011674:Pulse; D012039:Regional Blood Flow