Table 1.

Summary of the demographic and clinical characteristics of 12 patients

No.	Age/sex	Side	Maximal diameter (mm)	Neck size (mm)	D/N ratio	Balloon location in operation	Residual aneurysm neck found by intraoperative DSA	Vessel stenosis found by intraoperative DSA	Times of intraoperative DSA	Thromboembolic event	mRS at discharge	Aneurysm recurrence during follow-up
1	56/F	R	25.3	4.5	5.6	C2-C3 of ICA	+	Ophthalmic artery and ICA stenosis	3	-	0	No
2	54/F	R	21.4	13.4	1.6	Aneurysm neck	+	ICA stenosis	3	-	0	No
3	35/F	R	13.7	9.5.	1.4	Aneurysm neck	-	-	1	-	0	No
4	45/F	L	17.1	6.5	2.6	C2-C3 of ICA	-	-	1	-	0	No
5	64/F	R	23.8	9.3	3.9	Aneurysm neck	-	-	1	-	0	No
6	56/F	L	25.9	7.1	2.6	C2-C3 of ICA	-	-	1	Ischemic infarction in operation	1-2	No
7	62/F	R	26.8	15.4	1.7	Aneurysm neck	+	-	2	-	0	No
8	69/F	L	13.2	4.7	2.8	C2-C3 of ICA	-	-	1	-	0	No
9	67/F	R	10.5	5.9	1.8	C2-C3 of ICA	-	-	1	-	0	No
10	45/F	R	38.1	3.9	9.8	C2-C3 of ICA	-	-	1	-	0	No
11	43/M	L	14.1	4.8	2.9	C2-C3 of ICA	-	-	1	-	0	No
12	59/F	L	33.0	8.3	3.5	Aneurysm neck	-	-	1	-	0	No

M: Male; F; Female; R: right; L: left; DSA: Digital subtraction angiography; ICA: Internal carotid artery; D/N: Dome-neck; Mrs: Modified Rankin Scale.