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Table 6: Standard regression coefficient relating to MTT in each region
Medial Frontal Posterior Frontal Occipital Basal Ganglia
ICA 0.47^† 0.57^‡ 0.58^‡ 0.55^‡
PCA 0.50^† 0.66^‡ 0.78^‡ 0.59^‡
Moyamoya vessels 0.46^† 0.62^‡ 0.32^* 0.28
LMA −0.12 −0.19 −0.35^* −0.23
Age 0.23 0.15 0.37^* 0.38^*
Clinical type −0.01 −0.04 0.25 0.14
R² 0.45^† 0.70^‡ 0.73^‡ 0.52^‡
Note.— MTT indicates mean transit time; ICA, internal carotid artery; PCA, posterior cerebral artery; LMA, leptomeningeal anastomosis.
* , P < .05;
† , P < .01;
‡ , P < .001; based on multiple linear regression analysis.

	Medial Frontal	Posterior Frontal	Occipital	Basal Ganglia
ICA	0.47^†	0.57^‡	0.58^‡	0.55^‡
PCA	0.50^†	0.66^‡	0.78^‡	0.59^‡
Moyamoya vessels	0.46^†	0.62^‡	0.32^*	0.28
LMA	−0.12	−0.19	−0.35^*	−0.23
Age	0.23	0.15	0.37^*	0.38^*
Clinical type	−0.01	−0.04	0.25	0.14
R²	0.45^†	0.70^‡	0.73^‡	0.52^‡