Wide-neck intracranial aneurysm
Aneurysm neck > 4 mm in diameter or aneurysm dome to neck ratio < 2 are typically classified as wide-neck 1).
Treatment
1)
Johnston SC, Dudley RA, Gress DR, Ono L. Surgical and endovascular treatment of unruptured cerebral aneurysms at university hospitals. Neurology. 1999 Jun 10;52(9):1799-805. doi: 10.1212/wnl.52.9.1799. PMID: 10371526.