Fig. 1

Collateral vessel formation and ulcer healing after SVF cell therapy. Case 1: digital subtraction angiography (DSA) images before (A, C) and after SVF cell injections (B, D). Collateral vessel formation was increased in the knee, upper tibia, and lower tibia at 7 months after SVF cell therapy (B, D). Ulcer before treatment (E) and completely healed ulcer at 5 months after SVF cell injections (F)