Location and size of aneurysms
| Location | Size | ||
|---|---|---|---|
| <11 mm | 11–25 mm | ≥25 mm | |
| IC-PC | 6 | ||
| MCA M1-M2 junction | 5 | 2 | |
| MCA M1 segment | 1 | ||
| A-com | 5 | ||
| IC-bifurcation | 1 | ||
| BA-tip | 2 | ||
| VA | 1 | ||
Note.—IC-PC indicates Internal carotid artery–posterior communicating artery; MCA, Middle cerebral artery; A-com, Anterior communicating artery; IC-bifurcation, Internal carotid artery bifurcation; BA-tip, Basilar artery tip; VA, Vertebral artery.