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. 2014 Apr;35(4):698–705. doi: 10.3174/ajnr.A3755

Table 2:

Aneurysm characteristics

All Unruptured Aneurysms
Wide-Neck Aneurysms
Stent-Coil (n = 137) Coil Alone (n = 224) P Value Stent-Coil (n = 85) Coil Alone (n = 73) P Value
Maximum dimension 7.6 7.8 .46 8.9 10.1 .007
Height is max 43.8% 54.9% .04 42.4% 50.7% .30
Width is max 29.9% 21.4% .07 30.6% 23.3% .30
Depth is max 26.3% 23.7% .58 27.1% 26.0% .88
Max dimension >10 mm 19.7% 21.0% .77 30.6% 47.9% .03
Neck ≥4 mm 62.0% 32.6% <.0001 100% 100% NA
Average neck 4.7 3.5 <.0001 5.6 5.0 .004
Dome/neck radio 1.3 1.8 <.0001 1.2 1.6 <.0001
Dome/parent artery ratio 2.0 2.1 .33 2.2 2.6 .01
Circle of Willis location 44.5% 64.7% .0002 48.2% 72.6% .002

Note:—Max indicates maximum.