Patient demographics and anatomic characteristics

Aneurysm No.	Patient No.	Age (yr)	Sex	Location	Maximum Diameter (mm)	Thrombosis	Wall Contrast-Enhancement Pattern	Perifocal Edema	Treatment	Pathology
1^{^a}	2	75	M	BA	27.2	Complete	Double (partial)	+	Observation	−
2^{^a}	3	80	M	MCA	29.0	Complete	Double (complete)	+	Observation	−
3^{^a}	4	61	F	MCA	26.0	Partial	Double (complete)	+	Clipping	+
4	8	56	M	MCA	29.6	Partial	Double (Partial)	+	Clipping	+
5	10	53	M	MCA	14.2	Partial	Double (Partial)	+	Clipping	+
6	13	44	F	MCA	28.2	Partial	Double (Partial)	+	Clipping	+
7	5	55	M	MCA	25.0	Partial	Double (complete)	+	Clipping	−
8	5	55	M	dACA	11.0	Partial	Single	−	Clipping	−
9^{^a}	1	56	F	ICA	37.9	Partial	Single	−	Endovascular^{^b}	−
10	6	52	F	ICA	23.2	Partial	Single	−	Endovascular	−
11	7	63	F	ICA	21.4	Partial	Single	−	Endovascular	−
12	9	70	F	MCA	15.6	Partial	Single	−	Clipping	−
13	11	43	M	ICA	36.0	Partial	Single	−	Endovascular^{^b}	−
14	12	50	F	MCA	21.6	Partial	Single	−	Clipping	+

Note:—BA indicates basilar artery; dACA, distal anterior cerebral artery; +, Yes; −, No.
↵a Aneurysms 1, 2, 3 and 9 have been reported in the context of giant intracranial aneurysms imaged at 7T MRI.¹⁰
↵b Parent vessel occlusion.