Masazumi Maeda

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Serum calcitonin levels before (S1) and after (S2) surgery were measured in 67 patients with medullary thyroid carcinoma and the patients were followed with serial calcitonin measurements for a mean duration of 7 years. The calcitonin doubling time (T2) was calculated in patients with elevated postoperative calcitonin levels. Assuming that the serum(More)
Ten patients with medullary thyroid carcinoma (MTC) and 2 patients with papillary carcinoma of the thyroid were investigated by scintigraphy using99mTc(V)-dimercaptosuccinic acid [99mTc(V)-DMS], a new radiopharmaceutical agent for imaging MTC. At surgery, a tracer dose of the agent was administered intravenously, and the distribution of the agent was(More)
The effectiveness of combining mitomycin C (MMC), tamoxifen (TAM), and 1-(2-tetrahydrofuryl)-5-fluorouracil (tegafur) was evident in patients with estrogen receptor-positive (ER+) breast cancers. UFT, an oral preparation of tegafur and uracil at a molar ratio of 1:4, was reported to have higher antitumor effects than tegafur alone for patients with breast(More)
A comparative study of planar images and single photon emission tomography (SPET) of thallium-201 chloride and gallium-67 citrate was performed in 38 patients with proven primary lung cancer to detect the primary lung tumour and to establish the presence of metastasis in the lung hilum and mediastinum. The findings of planar images and SPET were compared(More)