Study on correlation between cerebral blood flow and brain function in patients with acute cerebral infarction

Objective To discuss the relationship between the regional cerebral blood flow(rCBF), the diaschisis and the change of (δ+θ)/(α+β) in acute cerebral infarction(CI). Methods Thirty patients underwent CT within 24 h and single-photon emission-computed temography (SPECT) within 72 h after onset of CI, we also studied the ration of (δ+θ)/(α+β) on brain electrical activity mapping (BEAM). Semiquantitative rCBF were measured using SPECT. Results {1} The rCBF in infarct and its surrounding area decreased. The ration of rCBF was less than 0.9. {2} The detection of BEAM showed that the ration of (δ+θ)/(α+β) was improved. There was a significant correlation between the change of rCBF and the ration of (δ+θ)/(α+β), r=-0.741. Conclusion {1} The hypoperfusion of cerebral blood flow and diaschisis resulted in the cerebral function impairment. {2} There was a negative correlation between rCBF and the ration of (δ+θ)/(α+β).