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. 2021 Dec 22;29(1):56–62. doi: 10.1177/15910199211068673

Table 2.

Aneurysm, procedural and follow up characteristics.

Aneurysm n = 78
Parent vessel location
 Vertebral 30 (38.5%)
 Basilar 24 (30.8%)
 PCA 15 (19.2%)
 PICA 8 (10.3%)
 AICA 1 (1.3%)
Side
 Left 24 (30.8%)
 Right 36 (46.1%)
 Midline 18 (23.1%)
Maximal diameter, mm  7 (IQR 5–9.9)
Length, mm  12 (IQR 9–18.9)
Ratio  0.59 (IQR 0.42–0.75)
Imaging modality
 CTA 58 (74.4%)
 MRA 68 (87.2%)
 DSA 38 (48.7%)
 Vessel wall MRI 21 (26.9%)
Procedures per aneurysm n = 78
Aneurysm treated
 Yes 20 (25.6%)
 No 58 (74.4%)
mRS before treatment n = 20
 1 10 (50.0%)
 2 6 (30.0%)
 3 4 (20.0%)
Endovascular treatment 12 (15.4%)
 Stent Assisted Coiling 4 (33.3%)
 Flow diverter 4 (33.3%)
 Primary vessel occlusion (PVO) 4 (33.3%)
Endovascular re-treatment 3 (3.8%)
 Flow diverter 1 (33.3%)
 PVO 2 (66.7%)
Surgery 8 (10.3%)
 Clipping 2 (25.0%)
 Bypass ICIC 4 (50.0%)
 Bypass ECIC 2 (25.0%)
Other surgeries 5 (8.2%)
 EVD placement/Revision 3 (60.0%)
 Decompressive craniectomy 2 (40.0%)
Intraprocedural aneurysm rupture 6 (7.7%)
 Stent Assisted Coiling 2 (33.3%)
 Flow diversion 1 (16.7%)
 PVO 2 (33.3%)
 Clipping 1 (16.7%)
Outcomes n = 70
mRS at last follow-up*
 0 5 (8.5%)
 1 36 (61.0%)
 2 11 (18.6%)
 3 3 (5.1%)
 4 1 (1.7%)
 6 3 (5.1%)
Length of clinical follow-up (Months) §  15 (IQR 2–49)
Length of imaging follow-up (Months) 36 (IQR 12–73)
Progression 9 (13.9%)

*11 Missing data.

§ 7 Missing data.

 5 Missing data.