نتایج جستجو برای: Co-incidence imaging
تعداد نتایج: 1010684 فیلتر نتایج به سال:
introduction: [61cu]diacetyl-bis(n4-methylthiosemicarbazone) ([61cu]atsm) is a well-established hypoxia imaging tracer with simple production and significant specifity. in this work the accumulation of the tracer is studied in wild-type, necrotic and hypoxic fibrosarcoma tumors. methods: [61cu]atsm was prepared using atsm ligand and [61cu]cuoac followed by i.v. administration and imaging studi...
this is a descriptive survey to define the incidence of co-existing disease in patients undergoing eye surgery before anesthesia in hospitals of the ministry of health and education in 1993. in this survey 2000 patients ' records have been studied who were admitted 10 the hospitals. collecting of data was done by checklist that contained questions about the condition of the heart and...
Introduction: [61Cu]diacetyl-bis(N4-methylthiosemicarbazone) ([61Cu]ATSM) is a well-established hypoxia imaging tracer with simple production and significant specifity. In this work the accumulation of the tracer is studied in wild-type, necrotic and hypoxic fibrosarcoma tumors. Methods: [61Cu]ATSM was prepared u...
Conventional seismic imaging possesses problem in exposing structural detail in complex geological media. Nevertheless, some recently introduced methods reduce this ambiguity to some extent, by using data based imaging operator or emancipation from the macro-velocity model. The zero offset common reflection surface (ZO-CRS) stack method is a velocity independent imaging technique which is frequ...
Introduction: [18F]-6-thia-14-fluoro-heptadecanoic acid 3b, a free fatty acid, has been used in myocardial PET imaging. In order to establish an automated synthesis module for routine production in the country, a study performed for optimization of the production conditions as well as making modifications. Methods: [18F] Benzyl-14-Fluoro-6-thia-heptadecanoate 2b was prepared in no-carrier...
Atmospheric CO(2) concentrations are predicted to double within the next century and alter climate regimes, yet the extent that these changes will affect plant diseases remains unclear. In this study conducted over five years, we assessed how elevated CO(2) and interannual climatic variability affect Cercospora leaf spot diseases of two deciduous trees. Climatic data varied considerably between...
we present 16 years old girl with primary breast lymphoma involving the both breasts simultaneously and co-incidence of central nervous system (cns) involvement which originated from the breast, in addition to evidence of lymphoma in multi-organ such as skin, mediastinum and some abdominal viscera. bilaterality has been observed in some series, but reports are few and series are often very smal...
Abstract Backgraound: Hypoxia is an important determinant for biological behavior of malignant solid tumors. In vitro and in vivo studies have shown that tumor hypoxia is associated with an increased likelihood of local recurrence and distant metastasis, as well as resistance to radiation therapy and certain types of chemotherapy. Studies have shown that some copper-bis thiosemicarbazones es...
[61Cu]diacetyl-bis(N4-methylthiosemicarbazone) ([61Cu] ATSM) was prepared using in house-made diacetyl-bis(N4-methylthiosemicarbazone) (ATSM) ligand and [61Cu]CuCl2 produced via the natZn(p, x)61Cu (180 muA proton irradiation, 22 MeV, 3.2 h) and purified by a ion chromatography method. [61Cu]ATSM radiochemical purity was >98 %, as shown by HPLC and RTLC methods. [61Cu]ATSM was administered into...
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