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@ARTICLE{Hutterer:825718,
author = {Hutterer, M. and Galldiks, N. and Hau, P. and Langen,
K.-J.},
title = {{P}itfalls in der [18{F}]-{FET}-{PET}-{D}iagnostik von
{H}irntumoren},
journal = {Der Nuklearmediziner},
volume = {38},
number = {04},
issn = {0723-7065},
address = {Stuttgart},
publisher = {Thieme},
reportid = {FZJ-2017-00035},
pages = {295 - 303},
year = {2015},
abstract = {In clinical neuro-oncology structural magnetic resonance
imaging (MRI) is currently the investigation of choice for
diagnosing brain tumors. In many situations, however, the
capacity of MRI identifying non-enhancing tumor or
differentiating neoplastic tissue from unspecific
treatment-related changes is limited.In the last years
positron emission tomography (PET) using radiolabeled amino
acids such as O-(2-[18F]-Fluoroethyl)-L-tyrosine (FET) and
[11C]-methionine (MET) in combination with MRI has shown a
great potential for a more accurate diagnosis of gliomas.
The decisive advantage of amino acid PET is a tumor-specific
tracer uptake independent from the blood-brain-barrier
permeability. In the diagnostics of primary brain tumors the
amino acid PET is able to describe the localization, extent
and heterogeneity of the metabolic active tumor, which can
be used for improved targeting of biopsy as well as planning
of resection and radiotherapy by better visualization of
tumor margins. Furthermore, following chemo-/radiotherapy
amino acid PET can be used for distinguishing tumor
recurrence from pseudoprogression and tumor response from
pseudoresponse during antiangiogenic treatment.The main
advantage of FET compared to MET is the longer half-life of
the [18F]-label, which allows a distribution on a wide
clinical scale. In addition, FET uptake appears to be more
specific for tumor tissue, because there is a higher uptake
of MET in inflammatory cells and tissues.Due to the rapidly
growing importance and regular use of amino acid PET in many
neuro-oncology centers the aim of this review is to
highlight the “pitfalls” especially of FET PET
diagnostics of brain tumors. The differential diagnosis of
newly diagnosed solitary cerebral lesions with or without
(circular) contrast enhancement on MRI includes different
types of malignant brain tumors, as well as various benign,
non-neoplastic lesions such as inflammatory, ischemic,
hemorrhagic or traumatic lesions.},
cin = {INM-3},
ddc = {610},
cid = {I:(DE-Juel1)INM-3-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
doi = {10.1055/s-0035-1564177},
url = {https://juser.fz-juelich.de/record/825718},
}