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.