Abstract:Background: Hypoxia is an important cause of recurrence and metastasis of malignant tumors. Noninvasive detection of the extent of hypoxic areas of tumors is essential for delineation of radiotherapy target areas and dose. Objectives: To investigate the feasibility of 99 Tc m-2-(2-methyl-5-nitro-1H-imidazol-1-yl) ethyl dihydrogen phosphate (99 Tc m-MNLS) hypoxic imaging to monitor the tumor hypoxic state in tumor-bearing mice after radiotherapy. Materials and Methods: Tumor-bearing mice were divided into eight… Show more
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