title: Evaluation of extracranial cerebrovascular disease with ocular pneumoplethysmography.
abstract: The results of OPG studies performed on 121 patients between 1974 and 1977 are compared with the results of biplane angiograms. By adding criteria based on the ratio of AOP:BAP, the overall accuracy was increased from 76.9 to 91.7 per cent. This improvement was obtained by establishing criteria that identified bilateral significant lesions. The results have confirmed the value of OPG in noninvasive assessment of carotid artery disease.
mesh_terms: D000388:Air; D001794:Blood Pressure; D002340:Carotid Artery Diseases / Q000175:diagnosis; D002533:Cerebral Angiography; D002561:Cerebrovascular Disorders / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D009880:Ophthalmic Artery; D010991:Plethysmography