We measured the excitation functions of (nat)Zn (p,x) reactions up to 17.6MeV, using the stacked-foils activation technique. High-purity natural zinc (and copper) foils were irradiated with proton beams generated by an 18MeV isochronous cyclotron. Activated foils were measured using high-purity Ge gamma spectroscopy to quantify the radionuclides (61)Cu, (66)Ga, (67)Ga, and (65)Zn produced from ...

RESUMO O objetivo deste estudo foi analisar fatores motivacionais para a participação em aulas online de ginástica artística (GA) e satisfação dos alunos quanto à qualidade dessas aulas. Uma amostra 39 respondeu ao Inventário Motivação Prática Desportiva um questionário estruturado avaliação da das online. Um total 67%, 53% 30% consideraram “muito importante” os motivos relacionados “competênci...

UNLABELLED The recent advances in molecular imaging techniques, using cancer-targeting nanoparticle probes, provide noninvasive tracking information on cancer cells in living subjects. Here, we report a multimodal cancer-targeted imaging system capable of concurrent fluorescence imaging, radionuclide imaging, and MRI in vivo. METHODS A cobalt-ferrite nanoparticle surrounded by fluorescent rho...

We report a versatile dendritic structure based platform for construction of targeted dual-modality imaging probes. The platform contains multiple copies of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) branching out from a 1,4,7-triazacyclononane-N,N',N″-triacetic acid (NOTA) core. The specific coordination chemistries of the NOTA and DOTA moieties offer specific loading of (...

A strong association between malignant lymphoma and Hashimoto's thyroiditis has frequently been reported. However, it is difficult to detect the lymphomatous transformation of Hashimoto's thyroiditis in the early stage. The purpose of the present study was to examine the usefulness of 67Ga scintigraphy in the diagnosis and evaluation of the therapeutic effects during follow-up, in patients with...

Our purpose is to optimize penalized blockiterative algorithms for detection of Ga-67 tumors in the thorax. We illustrate some of our methods involving psychophysical studies with results from a preliminary channelized Hotelling observer (CHO) optimization for a one-steplate (OSL) version of the penalized RBI-EM algorithm that features a 3D uniform quadratic penalty function. The algorithm para...

Introduction: In order to develop a radiolabeled calcitonin (CT) derivative for receptor imaging studies, CT was successively labeled with Ga-gallium chloride. Methods: The best results of the conjugation were obtained by the addition of 0.5 ml of a CT nasal pharmaceutical solution (1100 IU) to a glass tube pre-coated with DTPA-dianhydride (0.01 mg) at 25C with continuous mild stirring for 30 ...

Bombesin (BBN) is a peptide showing high affinity for the gastrin-releasing peptide receptor. Tumors such as prostate, small cell lung cancer, breast, gastric, and colon cancer are known to over express receptors to BBN and gastrin-releasing peptide (GRP). The goal of this study was to evaluate a new (67)Ga radiolabeled BBN analog based on the bifunctional chelating ligand DOTA (1, 4, 7, 10-tet...

Received 7/5/2002; revised 8/7/2002; accepted 8/19/2002. For correspondence or reprints contact: Chung-Huei Hsu, M.D., Department of Nuclear Medicine, Taipei Medical University Hospital, 252 Wu-Hsing Street, Taipei 110, Taiwan, R.O.C. Tel: (886)2-27395748, Fax: (886)2-27395749, E-mail: [email protected] Gallium-67 (Ga) citrate has been used for detecting infection and inflammation ever since its...