نتایج جستجو برای: 18f

تعداد نتایج: 13060  

2016
Caihua Tang Ganghua Tang Siyuan Gao Shaoyu Liu Fuhua Wen Baoguo Yao Dahong Nie

In this study, radiosynthesis and biological evaluation of a new [18F]labeled glutamine analogue, N-(2-[18F]fluoropropionyl)-L-glutamine ([18F]FPGLN) for tumor PET imaging are performed. [18F]FPGLN was synthesized via a two-step reaction sequence from 4-nitrophenyl-2-[18F]fluoropropionate ([18F]NFP) with a decay-corrected yield of 30 ± 5% (n=10) and a specific activity of 48 ± 10 GBq/μmol after...

Objective(s): Use of a positron emission tomography (PET)/single-photonemission computed tomography (SPECT) system facilitates the simultaneousacquisition of images with fluorine-18 fluorodeoxyglucose (18F-FDG) andtechnetium (99mTc)-tetrofosmin. However, 18F has a short half-life, and 511keV Compton-scattered photons are detected in the 99mTc energy window.Therefore, in this study, we aimed to ...

Journal: :International journal of radiation applications and instrumentation. Part A, Applied radiation and isotopes 1991
G K Mulholland

No-carrier-added trimethylsilyl[18F]fluoride (TMS[18F]F) was rapidly liberated from a variety of dry supports containing unreactive [18F]fluoride by simply heating with neat bistrimethylsilylsulfate. The supports included calcium phosphate, anion exchange resins, alumina, borosilicate and porous carbon beads, to which [18F]fluoride was applied by absorption or evaporation of aqueous solution. T...

2015
Mine Araz Gülseren Aras Özlem N. Küçük

AIM To investigate the role of 18F-NaF PET/CT and compare it with 99m Tc-MDP whole body bone scintigraphy and 18F-FDG PET/CT in detecting the extent of metastatic bone disease and to present our first experience with 18F-NaF PET/CT in our country. MATERIALS AND METHODS A total of 37 histopathologically proven cancer patients (22 male, 15 female) with bone metastasis detected on Tc-99m MDP who...

Alireza Karimian Amir Reza Jalilian, Fariba Saddadi Mehdi Akhlaghi, Mehraban Pouladi Mohammad Mirzaie Nami Shadanpour Sedigheh Moradkhani Yousef Yari Kamrani

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...

2017
Narinée Hovhannisyan Martine Dhilly Martin Fidalgo Fabien Fillesoye Stéphane Guillouet Brigitte Sola Louisa Barré

PURPOSE Multiple myeloma (MM) is a haematological malignancy that affects plasma cells in the bone marrow. Recently, [18F]fludarabine has been introduced as an innovative PET radiotracer for imaging lymphoma. It demonstrated a great potential for accurate imaging of lymphoproliferative disorders. With the goal to question the usefulness of [18F]fludarabine-PET in other haematological diseases, ...

2017
Stef De Lombaerde Sara Neyt Ken Kersemans Jeroen Verhoeven Lindsey Devisscher Hans Van Vlierberghe Christian Vanhove Filip De Vos

INTRODUCTION Drug-induced cholestasis is a liver disorder that might be caused by interference of drugs with the hepatobiliary bile acid transporters. It is important to identify this interference early on in drug development. In this work, Positron Emission Tomography (PET)-imaging with a 18F labeled bile acid analogue was introduced to detect disturbed hepatobiliary transport of bile acids. ...

2013
Mette Munk Jensen Kamille Dumong Erichsen Camilla Bardram Johnbeck Fredrik Björkling Jacob Madsen Michael Bzorek Peter Buhl Jensen Liselotte Højgaard Maxwell Sehested Andreas Kjær

INTRODUCTION APO866 is a new anti-tumor compound inhibiting nicotinamide phosphoribosyltransferase (NAMPT). APO866 has an anti-tumor effect in several pre-clinical tumor models and is currently in several clinical phase II studies. 3'-deoxy-3'-[18F]fluorothymidine ([18F]FLT) is a tracer used to assess cell proliferation in vivo. The aim of this study was non-invasively to study effect of APO866...

2017
Zhaoshuo Yang Jianhua Liu Qingqing Huang Zhouji Zhang Jiawei Zhang Yanjia Pan Yunke Yang Dengfeng Cheng

PURPOSE Bufalin, the main component of a Chinese traditional medicine chansu, shows convincing anticancer effects in a lot of tumor cell lines. However, its in vivo behavior is still unclear. This research aimed to evaluate how bufalin was dynamically absorbed after intravenous injection in animal models. We developed a radiosynthesis method of [18F]fluoroethyl bufalin to noninvasively evaluate...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2018
Junling Li Huaiyu Zheng Ramy Fodah Jonathan M Warawa Chin K Ng

2-18F-fluorodeoxysorbitol (18F-FDS) has been shown to be a promising agent with high selectivity and sensitivity in imaging bacterial infection. The objective of our study was to validate 18F-FDS as a potential radiopharmaceutical for imaging bacterial infection longitudinally in the lung. Methods: Albino C57 female mice were intratracheally inoculated with either live or dead Klebsiella pneumo...

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