نتایج جستجو برای: tc 99m labeled leukocyte
تعداد نتایج: 137594 فیلتر نتایج به سال:
UNLABELLED Prostate-specific membrane antigen (PSMA) is a well-established target for developing radiopharmaceuticals for imaging and therapy of prostate cancer (PCa). We have recently reported that novel (99m)Tc-labeled small-molecule PSMA inhibitors bind with high affinity to PSMA-positive tumor cells in vitro and localize in PCa xenografts. This study reports the first, to our knowledge, hum...
The clinical consequences of lower gastrointestinal bleeding range from trivial to life-threatening. Nuclear medicine imaging techniques allow identification of those patients who are actively bleeding. The demonstration of active bleeding not only provides important prognostic information but also allows for a coordinated imaging approach using angiography and aids localization of the bleeding...
UNLABELLED Annexin V, a human protein with a high affinity for phosphatidylserine, has been labeled with (99m)Tc to detect apoptosis in vivo. To determine the effectiveness of imaging with this agent as a reflection of the degree of apoptosis after the first dose of chemotherapy, we studied rats with an engrafted hepatoma. METHODS Annexin V was labeled with (99m)Tc (specific activity, 3.0 MBq...
UNLABELLED It is highly desired to develop new imaging probes for early detection of melanoma as early diagnosis and prompt surgical removal are a patient's best hope for a cure. The purpose of this study was to determine whether (99m)Tc- and (111)In-labeled alpha-melanocyte-stimulating hormone (alpha-MSH) peptides could be used as imaging probes for primary and metastatic melanoma using dual-m...
PURPOSE To evaluate whether scintigraphy with technetium-99m-labeled ceftizoxime ((99m)Tc-CFT) can differentiate mediastinitis from aseptic inflammation associated with sternotomy. METHODS Twenty female Wistar rats were randomly distributed into four groups: S (control) -partial upper median sternotomy with no treatment; SW (control) - sternotomy and treatment of sternal wounds with bone wax;...
BACKGROUND AND PURPOSE The arterial and venous blood concentration of technetium 99m-labeled hexamethylpropyleneamine oxime ((99m)Tc-HMPAO) reaches an equilibration more rapidly than other CBF tracers. We hypothesized that (99m)Tc radioactivity of a venous sample at equilibrium, which is similar to that of an arterial sample, would allow estimation of the integrated input function for the clini...
کد mcnp4c برای شبیه سازی ریه استفاده شد. در این مطالعه، نارسائی ریه به صورت تئوری بررسی شد. بافت های ریه و نای با استفاده از کد mcnp4c شبیه سازی شد و فرض شد که شامل tc-99m به عنوان چشمه رادیواکتیو با انرژی kev 140 بودند. ما فانتوم ها را تعریف کردیم که یک ریه و یک تومور کروی داشت(ریه چگالی g/cm3 0.296 کد mcnp4c برای شبیه سازی ریه استفاده شد. در این مطالعه، نارسائی ریه به صورت تئوری بررسی شد. باف...
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