| 摘要 |
The invention relates to a method of detecting and localizing malignant tumors and their metastases in tissues, which in healthy condition and in non-neoplastic conditions of chronic inflammation do not contain substantial quantities of neurotensin-receptors, in the body of a human being, which comprises: (i) administering to said being a composition comprising, in a quantity sufficient for external imaging, a radiolabelled peptide selected from the group consisting of neurotensin (NT), NT-receptor agonists. NT-receptor antagonists, NT analogues and NT derivatives; and thereupon (ii) subjecting said being to external imaging, by radioactive scanning or by magnetic resonance imaging, to determine the targeted sites in the body of said being. The invention further relates to a method for the therapeutic treatment of said malignant tumors by administration of the above-defined peptide, labelled for this purpose, and to the differential-diagnostic assessment and detection of a specific tumor type (i.e. ductal exocrine pancreatic carcinoma) of the pancreas. The invention also relates to a pharmaceutical composition to be used for detection, a pharmaceutical composition to be used for therapy and to a kit for preparing a radiopharmaceutical composition.
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