Baseline patient characteristics and recanalisation findings
| Parenchymal hyperdensity on flat-panel CT | ||||
|---|---|---|---|---|
| All patients (N=63) | Yes (N=25) | No (N=38) | p Value | |
| Age (years), median (range) | 63 (31–90) | 61 (31–82) | 64 (35–90) | 0.34 |
| Men, n (%) | 37 (58.7) | 14 (56.0) | 23 (60.5) | 0.72 |
| Previous multimodal CT with contrast media, n (%) | 40 (63.5) | 16 (64.0) | 24 (63.2) | 0.95 |
| Site of arterial occlusion, n (%) | ||||
| ICA isolated or tandem with MCA | 24 (38.1) | 10 (40.0) | 14 (36.8) | 1.00 |
| MCA isolated | 31 (49.2) | 12 (48.0) | 19 (50.0) | |
| Posterior circulation | 8 (12.7) | 3 (12.0) | 5 (13.2) | |
| NIHSS score, median (range) | 17 (5–32) | 16 (7–25) | 17 (5–32) | 0.25 |
| Prior intravenous rtPA, n (%) | 30 (47.6) | 11 (44.0) | 19 (50.0) | 0.64 |
| No. of passes of the stent-retriever, median (range) | 2 (1–5) | 2 (1–5) | 2 (1–4) | 0.88 |
| Time from symptom onset to recanalisation (min), median (range) | 390 (60–960) | 380 (120–960) | 395 (60–960) | 0.86 |
| Recanalisation procedure duration (min), median (range) | 120 (50–240) | 120 (60–200) | 120 (50–240) | 0.97 |
| Recanalisation after AIS treatment, n (%) | ||||
| TICI<2b | 11 (17.5) | 4 (16.0) | 7 (18.4) | 1.00 |
| TICI≥2b | 52 (82.5) | 21 (84.0) | 31 (81.6) | |
| 3-month modified Rankin scale, n (%) | ||||
| ≤2 | 28 (44.4) | 14 (56.0) | 14 (36.8) | 0.29 |
| 3–5 | 17 (27.0) | 6 (24.0) | 11 (28.9) | |
| 6 | 18 (28.6) | 5 (25.0) | 13 (34.2) | |
AIS, acute ischaemic stroke; ICA, internal carotid artery; MCA, middle cerebral artery; NIHSS, National Institutes of Health Stroke Scale; rtPA, recombinant tissue plasminogen activator; TICI, Thrombolysis in Cerebral Infarction score.