Second-stage pipeline embolization device treatment with coil embolization for large cerebral aneurysm prevents silent diffusion-weighted image ischemic infarction: a retrospective study

Egyptian Journal of Radiology and Nuclear Medicine

Table 2 Clinical and image outcomes post-embolization

Characteristic	All patients	Second-stage PED/coils	Single-stage PED/coils	P value
Aneurysms treated, n	22	10	12
mRS 0–1, n	20 (90.9%)	10 (100%)	10 (83.3%)	0.48
Deterioration of mRS (≥ 2 points), n	2 (9.1%)	0 (0%)	2 (16.7%)	0.48
Symptomatic ischemic complication, n	1 (4.5%)	0 (0%)	1 (8.3%)	1.0
DWI-high spots, mean (SD)	8.1 (5.7)	4.9 (3.8)	10.8 (5.7)	0.01
Retreatment, n	2 (9.1%)	0 (0%)	2 (16.7%)	0.48

PED pipeline embolization device, mRS modified Rankin scale, SD standard deviation