Figure 2. Modified Treatment in Cerebral Infarction (mTICI) Scores at the End of All Endovascular Procedures and After First-Line Strategy Alone.

Scores indicate the following: 0 (no revascularization), no perfusion or anterograde flow beyond site of occlusion; 1 (minimal revascularization), contrast passes the area of occlusion but fails to opacify the entire cerebral bed distal to the obstruction during angiographic run; 2 (partial revascularization), 2a, partial filling (<50%) of territory visualized, and 2b, partial filling (≥50%) of territory visualized; 3 (complete revascularization), complete revascularization with normal filling.

^aPrimary outcome.

^bAssessed by core laboratory. Missing data due to groin access failure (n = 4) were treated as failures (mTICI score of 0) and missing data due to no core laboratory reading (n = 20 for mTICI score at end of all procedures and n = 22 for mTICI score after first-line procedure) were replaced by the study site evaluation regardless of treatment groups.