Measurement of collateral cerebral hemispheric blood pressure by ocular pneumoplethysmography.
A new technic of ocular pneumoplethysmorgraphy for the simultaneous determination of blood pressures in the ophthalmic artery branches of the internal carotid arteries is described. It provides a noninvasive, atraumatic method for assessing hemispheric blood flow. When performed with simultaneous carotid compression, it provides a means for assessing the availability of collateral blood flow to the ipsilateral cerebral hemisphere. Clinical applications related to carotid artery disease and carotid artery surgery are discussed.
D001795:Blood Pressure Determination / Q000379:methods; D001921:Brain / Q000503:physiopathology*; D002339:Carotid Arteries; D002340:Carotid Artery Diseases / Q000503:physiopathology / Q000601:surgery; D002343:Carotid Artery, Internal; D002560:Cerebrovascular Circulation; D003097:Collateral Circulation; D006801:Humans; D007429:Intraocular Pressure; D009880:Ophthalmic Artery; D010991:Plethysmography / Q000295:instrumentation / Q000379:methods