| 摘要 |
FIELD: medicine. ^ SUBSTANCE: method involves measuring arterial oxygenation and cerebral venous oxygenation. Arteriovenous difference is determined before and after mental loading, related to complicated calculation operations. The arteriovenous difference dropping after the load, cerebral reserve blood circulation is to be diagnosed. When unchanged, no cerebral reserve blood circulation is to be diagnosed. The arteriovenous difference is measured before and after surgical blood circulation repair in the internal carotid artery. The difference reducing by 4%, cerebral reserve blood circulation is considered to be of moderate increase. The difference reducing by 5% or more, cerebral reserve blood circulation is considered to be considerably increased. ^ EFFECT: wide range of functional applications. ^ 4 cl, 6 tbl |
