Assessment of the human regional cerebral blood flow by venous occlusion rheoplethysmoencephalography

The possibility of using the method of venous occlusion rheoplethysmoencephalography (RPEG) for assessing the degree of change of the cerebral blood flow (CB) in the various zones of the cerebral hemispheres of the clinically healthy person during various functional loads was demonstrated. The change in CB is calculated as a percentage of its initial value. By means of venous occlusion RPEG evidence was obtained that CB is increased (by 114%) in the central-parietal region of the left hemisphere during movement of the right hand and reduced (by 45%) during acoustic stimulation. In the neighboring (temporal) zone the changes in CB were different in character.Laboratory of Clinical Physiology, Institute Work Hygiene and Occupational Diseases, Academy of Medical Sciences of the USSR, Moscow. (Presented by Academician of the Academy of Medical Sciences of the USSR A. M. Chernukh.) Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 82, No. 11, pp. 1402–1404, November, 1976.