نتایج جستجو برای: tumor uptake

تعداد نتایج: 549170  

Journal: :Neuro-oncology 2022

Abstract OBJECTIVE Translocator protein (TSPO) PET imaging is used in different neurological diseases and emerges as new tool for the diagnosis therapy planning of glioma patients. Various signal sources TSPO-PET signal, however, hamper image interpretation biological understanding. Here we assess TSPO expression ligand uptake a murine model human tissue derived from METHODS Mice with implanted...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2010
Jiang He Yong Wang Jinjin Feng Xiaodong Zhu Xiaoli Lan Arun K Iyer Niu Zhang Youngho Seo Henry F VanBrocklin Bin Liu

UNLABELLED Human antibodies targeting prostate cancer cell surface epitopes may be useful for imaging and therapy. The objective of this study was to evaluate the tumor targeting of an internalizing human antibody fragment, a small-size platform, to provide high contrast in a mouse model of human prostate carcinoma. METHODS A prostate tumor-targeting single-chain antibody fragment (scFv), UA2...

2011
Rochelle R. Arvizo Oscar R. Miranda Daniel F. Moyano Chad A. Walden Karuna Giri Resham Bhattacharya J. David Robertson Vincent M. Rotello Joel M. Reid Priyabrata Mukherjee

BACKGROUND Inorganic nanoparticles provide promising tools for biomedical applications including detection, diagnosis and therapy. While surface properties such as charge are expected to play an important role in their in vivo behavior, very little is known how the surface chemistry of nanoparticles influences their pharmacokinetics, tumor uptake, and biodistribution. METHOD/PRINCIPAL FINDING...

2017
Eugene Jeong Seung Hyup Hyun Seung Hwan Moon Young Seok Cho Byung-Tae Kim Kyung-Han Lee

Hematologic parameters of systemic inflammation are receiving attention as promising prognostic indicators in cancer patients. Here, we investigated the relation and compared the prognostic values of circulating blood cell-based parameters and tumor F-fluoro-2-deoxyglucose (FDG) uptake in patients with stage I nonsmall cell lung cancers (NSCLC).Subjects were 1034 patients with newly diagnosed s...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2008
Andreas Stadlbauer Olaf Prante Christopher Nimsky Erich Salomonowitz Michael Buchfelder Torsten Kuwert Rainer Linke Oliver Ganslandt

UNLABELLED The aim of this study was to determine the spatial correlation of O-(2-(18)F-fluoroethyl)-L-tyrosine ((18)F-FET) uptake and the concentrations of choline (Cho), creatine (Cr), and total N-acetylaspartate (tNAA) determined with proton magnetic resonance spectroscopic imaging ((1)H MRSI) in cerebral gliomas for the multimodal evaluation of metabolic changes. METHODS (18)F-FET PET and...

Abdoulreza Shojaei Ahmad Bitarafan-Rajabi, Fereydoun Rastgou, Hadi Malek Hasan Firoozabadi Mahsa Kargar, Masoud Mehrazin, Nahid Yaghoobi Reza Mirfallah,

Introduction: Meningioma is usually a benign brain tumor, but sometimes with aggressive course. The aim of this study was to assess the ability of 201Tl Brain SPECT to differentiate the pathologic grade of meningioma preoperatively. Methods: Thirty lesions in 28 patients were evaluated in this study. Early (20 minutes) and late (3 hours) brain SPECT images were performed and early u...

2012
Mette Munk Jensen Kamille Dumong Erichsen Fredrik Björkling Jacob Madsen Peter Buhl Jensen Maxwell Sehested Liselotte Højgaard Andreas Kjær

AIM 3'-deoxy-3'-[¹⁸F]fluorothymidine ([18F]FLT) is a tracer used to assess cell proliferation in vivo. The aim of the study was to use [18F]FLT positron emission tomography (PET) to study non-invasively early anti-proliferative effects of the experimental chemotherapeutic agent TP202377 in both sensitive and resistant tumors. METHODS Xenografts in mice from 3 human cancer cell lines were used...

Journal: :Journal of the Royal Statistical Society. Series C, Applied statistics 2010
Xiaoxi Zhang Timothy D Johnson Roderick J A Little Yue Cao

This work is motivated by a quantitative Magnetic Resonance Imaging study of the differential tumor/healthy tissue change in contrast uptake induced by radiation. The goal is to determine the time in which there is maximal contrast uptake (a surrogate for permeability) in the tumor relative to healthy tissue. A notable feature of the data is its spatial heterogeneity. Zhang, Johnson, Little, an...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2004
Nobuyuki Oyama Datta E Ponde Carmen Dence Joonyoung Kim Yuan-Chuan Tai Michael J Welch

UNLABELLED 3'-Deoxy-3'-(18)F-fluorothymidine ((18)F-FLT) has been recently described as a radiopharmaceutical for measuring cellular proliferation using PET imaging. Evaluation of tumor proliferative activity by PET using (18)F-FLT could be a procedure to assess the viability of tumor, such as histologic grade, clinical stage, and prognosis as well as the early effects of cancer therapy. This s...

Journal: :Acta haematologica Polonica 2023

Tumor markers are a group of molecules used to diagnose certain diseases, including cancer. These can alter cellular pathways, those associated with some anemias, by expressing or influencing mediators. The present study is based on data obtained from the PubMed database (1970–2019) using key words ‘tumor markers’, ’anemia’ and ‘iron’. We found that tumor affect hepcidin expression iron uptake ...

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