Summary of aneurysm cases^*

Characteristics	Group 1	Group 2	Group 3	Group 4	Summary
Age (year)
Mean	65.2	64.2	51.3	57.3	59.5
Range	48–81	42–79	24–70	47–70	24–81
Sex (No. of patients)
Female	5	5	6	3	19
Male	1	1	0	3	5
Unruptured-ruptured aneurysms (No. of patients)	4–2	4–2	4–2	4–2	16–8
Total No. of aneurysms	6	6	6	6	24
Largest diameter of aneurysm (mm)
Mean	5.2	6.25	7.2	11.0	7.4
Range	3.6–8.2	5.1–8.1	5–8	6–15	3.6–15
Diameter of aneurysm neck (mm)
Mean	3.5	3.7	4.4	7.17	4.7
Range	2.3–6.5	3.3–4	2.7–7	4–14.6	2.3–14.6
Size of aneurysm (No. of patients)
<7 mm	5	4	2	1	12
7–12 mm	1	2	4	2	9
13–24 mm	0	0	0	3	3
Diameter of parent artery vessel lumen (mm)
Mean	2.1	2.2	3.9	3.4	2.9
Range	1.3–3.2	1.6–2.7	3.4–5.3	2.7–4.4	1.3–4.4

^*Groups 1, 2, 3, and 4 are aneurysms located at the AComA, MCA, ICA, and BA, respectively.