نتایج جستجو برای: tyr3
تعداد نتایج: 264 فیلتر نتایج به سال:
Recently, we developed a technique that allows the in uiuo visualization in man of somatostatin receptor-positive neuroendocrine tumors after iv injection of [iZ31-Tyr3]octreotide or [“‘In-DTPA-nPhe’loctreotide. Radiotherapy of such tumors using somatostatin analogs coupled to OLor P-emitting radionuclides has been proposed as an application for radiolabeled somatostatin analogs. To develop thi...
BACKGROUND Targeted alpha therapy has been postulated to have great potential for the treatment of small clusters of tumour cells as well as small metastases. (213)Bismuth, an α-emitter with a half-life of 46 min, has shown to be effective in preclinical as well as in clinical applications. In this study, we evaluated whether (213)Bi-[DOTA(0), Tyr(3)]-octreotate ((213)Bi-DOTATATE), a (213)Bi-la...
UNLABELLED The incidence and prevalence of gastroenteropancreatic neuroendocrine tumors has been increasing over the past 3 decades. Because of high densities of somatostatin receptors (sstr)--mainly sstr-2--on the cell surface of these tumors, (111)In-diethylenetriaminepentaacetic acid-octreotide scintigraphy has become an important part of clinical management. (18)F-radiolabeled analogs with ...
The use of copper radioisotopes in cancer diagnosis and radionuclide therapy is possible using chelators that are capable of binding Cu(II) with sufficient stability in vivo to provide high tumour-to-background contrast. Here we report the design and synthesis of a new bifunctional chelator, 5-(8-methyl-3,6,10,13,16,19-hexaaza-bicyclo[6.6.6]icosan-1-ylamino)-5-oxopentanoic acid (MeCOSar), that ...
Peptide receptor radionuclide therapy (PRRT) with [177Lu-DOTA0,Tyr3]octreotate (177Lu-DOTATATE) is a treatment with good results in patients with metastatic gastroenteropancreatic neuroendocrine tumours (GEPNETs). However, there are some pitfalls that should be taken into consideration when evaluating the treatment response after PRRT. 354 Dutch patients with GEPNETs who were treated with 177Lu...
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