Table 1

Comparison of Thrombolysis in Myocardial and Cerebral Infarction (TIMI and TICI) scales

ScoreThrombolysis In Myocardial Infarction (TIMI) scaleModified Thrombolysis in Cerebral Infarction (TICI) scale
0No recanalizationNo perfusion or anterograde flow beyond site of occlusion
1Minimal recanalizationContrast passes the area of occlusion but fails to opacify the entire cerebral bed distal to the obstruction during angiographic run
2Partial recanalizationPartial perfusion wherein the contrast passes the occlusion and opacifies the distal arterial bed but rate of entry or clearance from the bed is slower than non-involved territories
2A: Partial filling only (<50%) of territory visualized*
2B: Partial filling ≥50% of territory is visualized†
3Complete recanalizationComplete reperfusion with normal filling
  • *2A is represented by partial filling, less than two-thirds of the ischemic territory, in the original TICI scale.

  • †2B is represented by complete filling that is slower than normal in the original TICI scale.