Table 2:

All aneurysms in the study collective and treated aneurysms

Location	All Aneurysmsa		Treated Aneurysms
	No.	%	No.	%
ACA/AcomA	557	31.7	497	36.6
MCA	458	26.0	283	20.8
Intradural ICA	530	30.1	438	32.2
Extradural ICA	88	5.0	37	2.7
Vertebrobasilar	126	7.2	104	7.6
Total	1751	100	1359	100

Note:—ACA indicates anterior cerebral artery; AcomA, anterior communicating artery.

^aTwo missing data.