TIMI Grade<unk> <unk>  is defined as partial perfusion. Contrast material passes across the obstruction and opacifies the coronary bed distal to the obstruction. However, the rate of entry of contrast material into the vessel distal to the obstruction or its rate of clearance from the distal bed (or both) are perceptibly slower than its<unk>  into or clearance from comparable areas not perfused by the previously occluded vessel (i.e. opposite coronary artery or the coronary bed proximal to the obstruction).  
This category is subdivided into:<unk> .0: TIMI<unk>  slow<unk> , dye markedly delayed in opacifying distal vasculature.<unk> .5: TIMI<unk>  fast<unk> , dye minimally delayed in opacifying distal vasculature.
TIMI flow grade 2
TIMI flow grade 3
TIMI flow grade 4
TIMI flow grade 0
TIMI flow grade 1
TIMI thrombus grade 0
TIMI thrombus grade 5
TIMI thrombus grade 3