1.

患者临床资料特征

Clinical data of the patients

Variables	Control group (n=30)	Trial group (n=30)	χ2/t	P
Ⅰ: Microaneurysm, diameter≤0.5 cm; Ordinary aneurysm, 0.5 cm≤diameter < 1.5 cm; Large aneurysm, 1.5 cm ≤diameter < 2.5 cm; Giant aneurysm, diameter≥2.5 cm. Ⅱ: Irregular shape aneurysms are including lobulated, with daughter sacs aneurysms or others. Ⅲ: Absolute wide-necked: aneurysm's neck≥4 mm; relatively wide-necked: dome to neck ratio ≤1.5, Or both. Ⅳ: With“*”is using Fisher's Exact Test.
Average age (year)	40.05±11.03	41.07±10.54	0.203	0.840
Gender (n)
Male	18	16	0.271	0.602
Female	12	14
Hunt-Hess classification (n)
Ⅰ	5	6	0.595	1.0000*
Ⅱ	15	14
Ⅲ	9	9
Ⅳ	2	1
Aneurysm's location (n)
Anterior circulation	18	19	0.071	0.791
Posterior circulation	12	11
Aneurysm's size (n)1
Microaneurysm	3	4	0.687	0.776*
Ordinary aneurysm	26	24
Large aneurysm	1	2
Giant aneurysm	0	0
Shape regulation (n)2
Yes	23	20	0.739	0.390
No	7	10
Aneurysm's direction (n)
Downward	6	8	0.373	0.542
Non downward	24	22
Aneurysm's neck (n)3
Wide-necked	13	16	0.601	0.438
Non Wide-necked	17	14