Table 2:

Percentages of patients with infarct extension (ie, lower pc-ASPECTS score on follow-up images compared with the pc-ASPECTS score on CTASI) categorized by the recanalization status

Parameter	Recanalization ≤ 24 Hours			P
	No	Yes	Not Assessed
Number of patients, n	9	21	13	−
Patients with infarct extension, n (%)	6 (67)	18 (86)	10 (77)	.43
Infarct extension in individual pc-ASPECTS regions*
Pons, n (%)	2 (22)	7 (33)	4 (21)	.91
Midbrain, n (%)	0 (0)	6 (29)	3 (23)	.29
Thalamus, n/N (%)	2/18 (11)	10/42	7/26 (27)	.47
PCA, n/N (%)	3/18 (17)	16/42 (38)	8/26 (31)	.29
Cerebellum, n/N (%)	3/18 (17)	23/42 (55)	7/26 (27)	.008

^*Infarct extension in individual pc-ASPECTS regions indicates infarction on follow-up images that was not diagnosed on CTASI.