Table 3:

Imaging characteristics, VIRAGE study

CharacteristicsValues
Median (Q1–Q3)Range
DWI-1 volume (cm3)13.4 (4.1–34.9)0–164.7
PWI-1 volume (cm3)34.9 (6.9–87.8)0–243.8
FLAIR-2 volume (cm3)25 (8–60)0–308
FLAIR-3 volume (cm3)20 (6–45)0–211
Occlusion
    No persistent (No.) (%)76 (83.5)
    Persistent (No.) (%)a15 (16.5)
        ICA9 (9.9)
        M14 (4.4)
        M22 (2.2)
Reperfusion
    No significant perfusion abnormality at TP1, n (%)21 (23.1)
    Reperfusion ≥90%35 (38.5)
    Reperfusion <90%33 (36.3)
    Technically inadequate2 (2.2)

  • a Persistent occlusion was defined as an occluded artery on MRA-1 remaining occluded on MRA-2 in an acute stroke territory.