Table 1.
Baseline infarct patterns and angiographic features.
| BASELINE INFARCT PATTERNS | Perforator | Territorial (embolic a-to-a) | Borderzone | Mixed | P* |
|---|---|---|---|---|---|
|
| |||||
| Stenosis severity | 0.65 | ||||
| - 50–70% (n=74) | 18 (24.3%) | 35 (47.3%) | 8 (10.8%) | 13 (17.6%) | |
| - ≥70% (n=62) | 16 (25.8%) | 34 (54.8%) | 4 (6.4%) | 8 (13%) | |
| Collaterals (ASITN/SIR) | 0.56 | ||||
| - None (0) (n=82) | 22 (26.8%) | 42 (51.2%) | 5 (6.1%) | 13 (15.9%) | |
| - Poor (1–2) (n=35) | 7 (20%) | 18 (51.4%) | 5 (14.3%) | 5 (14.3%) | |
| - Good (3–4) (n=19) | 5 (26.3%) | 9 (47.4%) | 2 (10.5%) | 3 (15.8%) | |
| Stenosis location | <0.01 | ||||
| - ICA (n=20) | 1 (5%) | 13 (65%) | 1 (5%) | 5 (25%) | |
| - MCA (n=47) | 9 (19.1%) | 17 (36.2%) | 11 (23.4%) | 10 (21.3%) | |
| - Vertebral (n=29) | 7 (24.1%) | 22 (75.9%) | 0 | 0 | |
| - Basilar (n=29) | 13 (44.8%) | 12 (41.4%) | 0 | 4 (13.8%) | |
| - Tandem (n=11) | 4 (36.4%) | 5 (45.4%) | 0 | 2 (18.2%) | |
In brackets, percentage of each stroke pattern according to each angiographic category. Location of stenosis: ICA: internal carotid artery; MCA: middle cerebral artery; VA: vertebral artery; BA: basilar artery; Tandem: ICA+MCA or VA+BA concomitant stenoses.
*
Chi-Square test for comparisons among any of the subgroups