نتایج جستجو برای: 18f fluor

تعداد نتایج: 14246  

2011
Kyoichi Kaira Noriaki Sunaga Tamotsu Ishizuka Kimihiro Shimizu Nobuyuki Yamamoto

The purpose of this study was to systemically review the available literature regarding the diagnostic performance of positron emission tomography (PET) using 2-[18F]fluoro-2-deoxy-D-glucose ([18F]FDG) in patients with thymic epithelial tumors. We reviewed 13 studies that evaluated the diagnostic role of thymic epithelial tumors with [18F]FDG-PET. [18F]FDG-PET is a useful radiological modality ...

2002
MIRD Dose Marguerite T. Hays

18F-FDG is formed through radiochemical synthesis from cyclotron-produced 18F (K. Breslow, written communication, June 2000). Production of 18F is through proton bombardment of enriched 18O-water. 18F-fluoride is bound to 1,3,4,6-tetra-O-acetyl-2-O-trifluoromethanesulfonyl-Dmannopyranose (mannose triflate) under conditions of a stereospecific second-order nucleophilic substitution reaction, whi...

Journal: :Current Oncology 2023

Purpose: To analyse diagnostic and therapeutic impact of molecular imaging TNM (miTNM) stage obtained with [18F]DCFPyL versus [18F]F-choline in head-to-head comparison biochemical recurrence (BCR) prostate cancer (PCa). Material methods: Patients BCR PCa after radical treatment previous [18F]F-choline-PET/CT (negative or oligometastatic disease) were recruited to [18F]DCFPyL-PET/CT. classified ...

2017
Sonja Schelhaas Kathrin Heinzmann Vikram R. Bollineni Gerbrand M. Kramer Yan Liu John C. Waterton Eric O. Aboagye Anthony F. Shields Dmitry Soloviev Andreas H. Jacobs

The positron emission tomography (PET) tracer 3'-deoxy-3'-[18F]fluorothymidine ([18F]FLT) has been proposed to measure cell proliferation non-invasively in vivo. Hence, it should provide valuable information for response assessment to tumor therapies. To date, [18F]FLT uptake has found limited use as a response biomarker in clinical trials in part because a better understanding is needed of the...

2014
Shih-Yen Wu Shih-Pin Huang Yen-Chen Lo Ren-Shyan Liu Shyh-Jen Wang Wuu-Jyh Lin Chih-Chieh Shen Hsin-Ell Wang

INTRODUCTION Benzamide can specifically bind to melanoma cells. A 18F-labeled benzamide derivative, [18F]N-(2-diethylaminoethyl)-4-[2-(2-(2-fluoroethoxy) ethoxy)ethoxy]benzamide ([18F]FPBZA), was developed as a promising PET probe for primary and metastatic melanoma. METHODS [18F]FPBZA was synthesized via a one-step radiofluorination in this study. The specific uptake of [18F]FPBZA was studie...

2017
Fuhua Wen Dahong Nie Kongzhen Hu Ganghua Tang Shaobo Yao Caihua Tang

BACKGROUND Phosphatidylserine (PS)-targeting positron emission tomography (PET) imaging with labeled small-molecule tracer is a crucial non-invasive molecule imaging method of apoptosis. In this study, semi-automatic radiosynthesis and biodistribution of N-(2-18F-fluoropropionyl)-bis(zinc(II)-dipicolylamine) (18F-FP-DPAZn2), as a potential small-molecule tracer for PET imaging of cell death in ...

2016
SiMin He MingWei Wang ZhongYi Yang JianPing Zhang YongPing Zhang JianMin Luo YingJian Zhang

BACKGROUND There is an increasing need to characterize biological processes for early prediction and monitoring of response to endocrine therapy in breast cancer using multiple positron emission tomography (PET) imaging probes. However, use of more than two PET tracers in a single clinical trial is quite challenging. In this study we carried out a longitudinal investigation of 18F-FES, 18F-FDG,...

2018
Antoine Verger Carina Stegmayr Norbert Galldiks Axel Van Der Gucht Philipp Lohmann Gabriele Stoffels Nadim J. Shah Gereon R. Fink Simon B. Eickhoff Eric Guedj Karl-Josef Langen

PET using the amino-acid O-(2-18F-fluoroethyl)-l-tyrosine (18F-FET) is gaining increasing interest for brain tumour management. Semi-quantitative analysis of tracer uptake in brain tumours is based on the standardized uptake value (SUV) and the tumour-to-brain ratio (TBR). The aim of this study was to explore physiological factors that might influence the relationship of SUV of 18F-FET uptake i...

2016
Ann-Marie Waldron Leonie wyffels Jeroen Verhaeghe Jill C. Richardson Mark Schmidt Sigrid Stroobants Xavier Langlois Steven Staelens

We aimed to monitor the timing of amyloid-β deposition in relation to changes in brain function using in vivo imaging with [18F]-AV45 and [18F]-FDG in a mouse model of Alzheimer's disease. TASTPM transgenic mice and wild-type controls were scanned longitudinally with [18F]-AV45 and [18F]-FDG before (3 months of age) and at multiple time points after the onset of amyloid deposition (6, 9, 12, an...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2008
Andreas K Buck Martin Bommer Malik E Juweid Gerhard Glatting Stephan Stilgenbauer Felix M Mottaghy Melanie Schulz Thomas Kull Donald Bunjes Peter Möller Hartmut Döhner Sven N Reske

UNLABELLED Acute myeloid leukemia (AML) is a neoplasm of hematopoietic stem cells with partial or complete loss of the ability to differentiate but with preserved proliferation capacity. The aim of our study was to evaluate if the in vivo proliferation marker 3'-deoxy-3'-18F-fluorothymidine (FLT) is suitable for visualizing leukemia manifestation sites and if 18F-FLT is a surrogate marker for d...

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