Table 1. Clinicopathologic Features and Outcome of the 29 Aneurysms Treated with the Pipeline Embolization Device.

Size (mm)	Mean: 6.99 Range: 2.1 - 22
Size by group
Small (< 10 mm)	23
Large (10-25 mm)	6
Neck width
< 4 mm	16
> 4 mm	13
Aspect ratio
< 1.5	16
> 1.5	13
Prior treatment
None	25
Stenting + coiling	1
Coiling	3
Number of PED used
One	19
Two	10
Use of adjuvant coiling	2