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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
ParameterRecanalization ≤ 24 HoursP
NoYesNot Assessed
Number of patients, n92113−
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)10/427/26 (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.