نتایج جستجو برای: پرتونگاری گسیل پوزیترونی pet
تعداد نتایج: 55356 فیلتر نتایج به سال:
objective(s): we performed a phase iia clinical trial of trans-1-amino-3-18ffluoro-cyclobutane carboxylic acid (anti-18f-facbc), a synthetic amino acid analog for pet, in patients with metastatic prostate cancer. methods: the study subjects consisted of 10 untreated prostate cancer patients having lymph node and/or bone metastasis. five patients underwent whole-body pet 5 and 30 min after intra...
this study is carried out to estimate the potential evapotranspiration (pet) and crop coefficient (kc) for wheat, bl 3235 variety. a lysimeter is installed to estimate pet at the experimental farm of agricultural research center of bhairahawa, which is located in western part of nepal. the blaney-criddle formula is used to estimate the kc for wheat. the estimated values of pet and kc for wheat ...
objective(s): the study objective was to assess the diagnostic performance of positron emission tomography (pet) for gliomas using the novel tracer 18f-fluciclovine (anti-[18f]facbc) and to evaluate the safety of this tracer in patients with clinically suspected gliomas.methods: anti-[18f]facbc was administered to 40 patients with clinically suspected high- or low-grade gliomas, followed by pet...
a 65 year old male with metastatic colorectal cancer (mcrc) in the liver was referred for selective internal radionuclide therapy (sirt) following a history of extensive systemic chemotherapy. 90y pet imaging was performed immediately after treatment and used to confirm lesion targeting and measure individual lesion absorbed doses. lesion dosimetry was highly predictive of eventual response in ...
Objective(s): In view of somatostatin receptor (SSR) expression on cell membranes of the majority of neuroendocrine tumors (NETs), functional imaging exploiting analogs of SSR alongside the anatomical imaging is the mainstay of this diagnostic modality. In this prospective study, we assessed and directly compared the diagnostic parameters of 68Ga-DOTATATE PET/CT and 99...
در دو دهه ی اخیر، تحقیقات پیشرفته و گسترده ای در زمینه علوم و فن آوری نانو انجام شده است. این تحقیقات در شاخه های مختلف مهندسی، فیزیک، علم مواد و زیست شناسی مولکولی انجام می شود. نانوساختارها دارای ویژگی های متفاوتی نسبت به مواد حجیم هستند و همین خصوصیت، سبب توجه به مبانی علمی و کاربردی آن ها در فناوری های جدید شده است. خواص الکترونیکی - اپتیکی منحصر به فرد نقطه های کوانتومی و کاربردهای آن ها د...
مقدمه: گسیل های صوتی گوش، اصواتی با شدت کم هستند که از حلزون سالم تولید شده و در صورت سالم بودن ساختار انتقال صوت قابل اندازه گیری هستند. هدف از این مطالعه بررسی موفقیت جراحی بعد از گذاشتن لوله تمپانوستومی با استفاده از آزمون های مرسوم شنوایی سنجی و teoae و dpoae به عنوان روشی برای ارزیابی شنوایی بعد از عمل جراحی می باشد. روش بررسی: این مطالعه بصورت توصیفی- تحلیلی برروی 130 بیمار مبتلا به اوتیت...
objectives to assess the diagnostic accuracy of pet-mri and mri alone for the detection of local recurrences of soft tissue sarcomas (sts) after initial surgical resection of the primary tumors. methods a total of 41 patients with a clinically suspected tumor relapse of sts underwent an 18f-fdg- pet-mri examination for assessment of local recurrence. two experienced physicians interpreted the m...
Introduction: Prostate-specific membrane antigen (PSMA) has been demonstrated as a promising tool for specific imaging of prostate cancer (PCa) via positron emission tomography-computed tomography (PET/CT) scanning. Radiation treatment planning (RTP) based on 68Ga-PSMA PET/CT scanning can also lead to some decision modifications. The specific goal o...
The advent of dual-modality PET/CT imaging has revolutionized the practice of clinical oncology, cardiology and neurology by improving lesions localization and the possibility of accurate quantitative analysis. In addition, the use of CT images for CT-based attenuation correction (CTAC) allows to decrease the overall scanning time and to create a noise-free attenuat...
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