Unruptured Intracranial Aneurysms

1 This value relates to aneurysm instability, i.e., either growth or rupture of the aneurysm. .* 2 The significant differences in the risk of rupture depending on geographic region (North America and Europe excluding Finland versus Finland versus Japan) have the consequence that data from Japan or FInland, for example, are not necessarily applicable to patients in Germany.Multiple studies are listed here to demonstrate the variability of risk depending on geographic region.ACA incl.AComA, anterior cerebral arteries incl.