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Patient demographics and anatomic characteristics

Aneurysm No.Patient No.Age (yr)SexLocationMaximum Diameter (mm)ThrombosisWall Contrast-Enhancement PatternPerifocal EdemaTreatmentPathology
1a275MBA27.2CompleteDouble (partial)+Observation
2a380MMCA29.0CompleteDouble (complete)+Observation
3a461FMCA26.0PartialDouble (complete)+Clipping+
4856MMCA29.6PartialDouble (Partial)+Clipping+
51053MMCA14.2PartialDouble (Partial)+Clipping+
61344FMCA28.2PartialDouble (Partial)+Clipping+
7555MMCA25.0PartialDouble (complete)+Clipping
8555MdACA11.0PartialSingleClipping
9a156FICA37.9PartialSingleEndovascularb
10652FICA23.2PartialSingleEndovascular
11763FICA21.4PartialSingleEndovascular
12970FMCA15.6PartialSingleClipping
131143MICA36.0PartialSingleEndovascularb
141250FMCA21.6PartialSingleClipping+
  • Note:—BA indicates basilar artery; dACA, distal anterior cerebral artery; +, Yes; −, No.

  • a Aneurysms 1, 2, 3 and 9 have been reported in the context of giant intracranial aneurysms imaged at 7T MRI.10

  • b Parent vessel occlusion.