title: Oculopneumoplethysmography, Doppler examination, and supraorbital photoplethysmography: a comparison of hemodynamic techniques in assessing cerebrovascular occlusive disease.
abstract: There noninvasive techniques used in the evaluation of carotid occlusive disease were compared in the same population group. The cerebrovascular Doppler examination (CDE) had an accuracy rate of 89%, oculopneumoplethysmography (OPG-Gee) an accuracy rate of 94%, and supraorbital photoplethysmography (SOPPG) an accuracy rate of 86%. With the combined use of the CDE and the OPG-Gee, the accuracy rate increased to 96% when the results were concordant, and the false-negative rate dropped to 3%. The data would suggest that the combined use of the CDE and the OPG-Gee offers an advantage over either technique used individually.
mesh_terms: D001157:Arterial Occlusive Diseases / Q000175:diagnosis; D002340:Carotid Artery Diseases / Q000175:diagnosis; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D003951:Diagnostic Errors; D005069:Evaluation Studies as Topic; D006801:Humans; D010991:Plethysmography / Q000379:methods*; D014463:Ultrasonography