[Evaluation of perfusion of transplanted microvascular flaps using radionuclide arteriography]

Microvascular flap by its autonomous circulation, following the transplantation in recipient region, provides the quantity of blood sufficient for nutritive needs of flap, but it also provides additional blood supply in the surrounding of recipient region. The evaluation of the relation of the tissues perfusion of transferred microvascular flaps and the tissues of surrounding recipient region was done in 33 patients, 15.24 months after the transplantation of microvascular flaps, by radionuclide angiography using Tc-99m in the form of MAA HAS or pertechnetate at the Clinic for Plastic Surgery and Burns of Military Medical Academy (MMA) and at the Institute for Nuclear Medicine of MMA. Cutaneous, myocutaneous and osteocutaneous microvascular flaps were transferred to the foot, lower leg and in the head region. The obtained results revealed that the perfusion of the tissue of transferred flaps was better than the perfusion of the recipient region surrounding (232%). Perfusion of myocutaneous flaps related to the type of microvascular flap was the highest and came to 244% of the perfusion of the recipient region surrounding. Accumulation of radiopharmaceuticals in the tissue of the flap was homogenous in 19 (57.57%) flaps.