Table II.

Xe-CT examination results analysis (ml/(100 g·min).

Group	Control group	Observation group	t	P-value
ACA
Before operation	35.6±4.3	34.6±4.4	0.069	0.923
3 days after operation	40.5±5.2	48.9±5.3	4.632	0.037
MCA
Before operation	32.4±3.6	32.3±3.5	0.072	0.914
3 days after operation	36.6±3.7	42.3±3.9	4.527	0.039
PCA
Before operation	27.6±3.2	26.5±3.3	0.125	0.867
3 days after operation	32.3±3.5	37.6±3.7	5.201	0.033
ABZ
Before operation	23.3±3.0	22.4±3.2	0.135	0.822
3 days after operation	26.7±3.2	32.3±3.3	5.326	0.031
PBZ
Before operation	21.4±2.8	20.3±2.6	0.164	0.735
3 days after operation	25.4±2.7	30.5±2.5	5.526	0.026
IBZ
Before operation	16.7±2.3	15.8±2.4	0.245	0.635
3 days after operation	18.3±2.6	25.4±2.7	5.127	0.035

Xe-CT, xenon-enhanced computer tomography; ACA, anterior cerebral artery; MCA, middle cerebral artery; PCA, posterior cerebral artery; ABZ, anterior border zone; PBZ, posterior border zone; IBZ, inner border zone.