Table 1

Inclusion and exclusion criteria for French Observatory, WEBCAST, and WEBCAST-2

CriteriaFrench ObservatoryWEBCAST/WEBCAST2
InclusionSimilar criteria
  • Age ≥18 years

  • Ruptured/unruptured aneurysms

  • Location: BA, MCA, ICAt, AComA/ACA

  • Diameter suitable for WEB use

  • DN ratio ≥1

  • Ruptured aneurysm: H&H >III

InclusionDistinctive criteria
  • Recanalized aneurysms

  • Neck size≥4 mm

  • No additional implant

ExclusionSimilar criteria
  • Age >75 years

  • More than one aneurysm to be treated within 30 days

  • Microcatheter could not reach target aneurysm

  • Tumor or AVM

ExclusionDistinctive criteria
  • Unruptured aneurysm: SAH/ICH within 3 months prior treatment

  • ACA, anterior cerebral artery; AcomA, anterior communicating artery; AVM, arteriovenous malformation; BA, basilar artery; DN,Dome-to-Neck. ICH, intracranial hemorrhage; H&H, Hunt and Hess grade; ICAt, internal carotid artery terminus; MCA, middle cerebral artery; SAH, subarachnoid hemorrhage.