Clinical Profile and Outcome in Patients with Coronary Slow Flow Phenomenon

Figure 1

TIMI frame count and the definition of the first frame and the last frame. (a) The first frame of the LAD and LCX in which dye first touches both borders at the origin of the two arteries; (b) the last frame of the LAD in which dye first enters the distal landmark branch: the distal-most bifurcation of the LAD (red circle), usually at the apex of the heart, like the “pitchfork” in this case; (c) the last frame of the LCX in which dye first enters the distal bifurcation of the segment with the longest total distance (red circle); (d) the first frame of the RCA in which dye first touches both borders at the origin of the RCA; (e) the last frame of the RCA in which dye first enters the distal landmark branch: the distal landmark is the first branch arising from the posterior lateral extension of the RCA after the origin of the posterior descending artery (red circle). LAD = left anterior descending coronary artery; LCX = left circumflex artery; RCA = right coronary artery.

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