Document Detail


Earlier Diagnosis of Progressive Disease during Bevacizumab Treatment Using O-(2-18F-Fluorethyl)-L-tyrosine Positron Emission Tomography in Comparison with Magnetic Resonance Imaging.
MedLine Citation:
PMID:  23759368     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
AbstractAntiangiogenic treatment using bevacizumab in brain tumor patients may cause difficulties in the diagnosis of tumor progression (ie, nonenhancing tumor progression). Newly defined criteria for treatment assessment and diagnosis of tumor progression (ie, RANO [Response Assessment in Neuro-Oncology] criteria) have implemented signal alterations on T2/fluid-attenuated inversion recovery (FLAIR) sequences to changes in contrast enhancement. However, T2/FLAIR hyperintensity may be influenced by other causes (eg, radiation-induced leukoencephalopathy, peritumoral edema, gliosis). Positron emission tomography using the radiolabeled amino acid O-(2-[18F]fluoroethyl)-l-tyrosine (18F-FET-PET) may help detect the metabolically active tumor extent. We present 18F-FET-PET imaging findings in a glioblastoma patient during bevacizumab treatment suggesting an earlier diagnosis of tumor progression than magnetic resonance imaging changes, which are based on the RANO criteria.
Authors:
Norbert Galldiks; Marion Rapp; Gabriele Stoffels; Veronika Dunkl; Michael Sabel; Karl-Josef Langen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Molecular imaging     Volume:  12     ISSN:  1536-0121     ISO Abbreviation:  Mol Imaging     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-06-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101120118     Medline TA:  Mol Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  273-6     Citation Subset:  IM    
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