Thrombus imaging characteristics per occlusion location (ICA, M1, and M2).
| Thrombus imaging characteristics, median (IQR) | ICA, n=202 | M1, n=566 | M2, n=148 | p-value |
| DT (mm) | 0 (0–0) | 12 (6–18) | 30 (22–55) | <0.01 |
| Thrombus lengthα (mm) | 26 (17–43) | 18 (12–27) | 12 (9–22) | <0.01 |
| Thrombus density (HU) | 55 (49–61) | 50 (44–57) | 44 (38–50) | <0.01 |
| Thrombus perviousness (HU) | 3 (-3–12) | 5 (-2–12) | 6 (-1–18) | 0.02 |
| CBSβ | 3 (1–4) | 6 (6–7) | 9 (9–9) | <0.01 |
Missing values: α1,β191.
CBS, clot burden score; DT, distance from ICA-terminus to the thrombus; HU, Hounsfield units; ICA, internal carotid artery; IQR, interquartile range; M1, middle cerebral artery M1 segment; M2, middle cerebral artery M2 segment; mm, millimeters.