Особенности радионуклидной диагностики рака щитовидной железы: факторы, влияющие на результаты радиоизотопного теста

59 patients with pathologically confirmed thyroid cancer underwent biphase scintigraphy with application of 99m Tc-pertechnetate and 99m Tc-MIBI prior to operation. The true positive results were detected in 35 patients (59.32 %). It was found, that one of the most significant factors which effected the quality of radionuclide imaging was the size of the cancer nodule: images of nodules with diameter g1 cm were of higher quality. As the factor, promoting positive radionuclide diagnostics, serves biological activity of thyroid cancer, which was shown by invasion of increased cancer nodules to surrounding tissues and/or the presence of metastases. The factor, complicating radionuclide diagnostics of cancer nodules, was the presence of accompanying non-cancer thyroid diseases.