TABLE 2:

Location of aneurysms <5 mm maximal diameter (n = 41)

LocationFrequency
Middle cerebral artery bifurcation9 (22%)
Caroticoophthalmic8 (21%)
Anterior communicating artery5 (12%)
Supraclinoid internal carotid artery5 (12%)
Superior hypophyseal artery4 (10%)
Posterior communicating artery3 (8%)
Internal carotid artery bifurcation1 (2.5%)
Anterior choroidal artery1 (2.5%)
M1 segment of middle cerebral artery1 (2.5%)
Cavernous internal carotid artery1 (2.5%)
A1 segment of the anterior cerebral artery1 (2.5%)
A2 segment of the anterior cerebral artery1 (2.5%)
Basilar artery1 (2.5%)