User profiles for Karl-Josef Langen

Karl-Josef Langen

Verified email at fz-juelich.de
Cited by 18190

O-(2-[18F]fluoroethyl)-l-tyrosine PET combined with MRI improves the diagnostic assessment of cerebral gliomas

…, HW Müller, K Zilles, HH Coenen, KJ Langen - Brain, 2005 - academic.oup.com
MRI is commonly used to determine the location and extent of cerebral gliomas. We investigated
whether the diagnostic accuracy of MRI could be improved by the additional use of PET …

Radiolabeled amino acids: basic aspects and clinical applications in oncology

…, J Pruim, EGE de Vries, KJ Langen… - Journal of nuclear …, 2001 - Soc Nuclear Med
As the applications of metabolic imaging are expanding, radiolabeled amino acids may
gain increased clinical interest. This review first describes the basic aspects of amino acid …

[HTML][HTML] Joint EANM/EANO/RANO practice guidelines/SNMMI procedure standards for imaging of gliomas using PET with radiolabelled amino acids and [18F]FDG …

…, N Galldiks, C La Fougère, KJ Langen… - European journal of …, 2019 - Springer
These joint practice guidelines, or procedure standards, were developed collaboratively by
the European Association of Nuclear Medicine (EANM), the Society of Nuclear Medicine and …

O-(2-[18F] fluoroethyl)-L-tyrosine: uptake mechanisms and clinical applications

KJ Langen, K Hamacher, M Weckesser, F Floeth… - Nuclear medicine and …, 2006 - Elsevier
O-(2-[ 18 F]fluoroethyl)-l-tyrosine (FET) is a promising tracer for PET that has demonstrated
convincing results especially in the diagnostics of brain tumors. In contrast to other …

Advances in neuro-oncology imaging

KJ Langen, N Galldiks, E Hattingen… - Nature Reviews …, 2017 - nature.com
Despite the fact that MRI has evolved to become the standard method for diagnosis and
monitoring of patients with brain tumours, conventional MRI sequences have two key limitations: …

Cortical and subcortical glucose consumption measured by PET in patients with Huntington's disease

T Kuwert, HW Lange, KJ LANGEN, H Herzog, A Aulich… - Brain, 1990 - academic.oup.com
In 23 patients with moderate to severe Huntington's disease (HD) and 21 normal volunteers,
the regional cerebral metabolic rate of glucose consumption (rCMRGlc) was measured in …

Diagnosis of pseudoprogression in patients with glioblastoma using O-(2-[18F]fluoroethyl)-l-tyrosine PET

…, GR Fink, A Drzezga, M Schmidt, KJ Langen - European journal of …, 2015 - Springer
Purpose The follow-up of glioblastoma patients after radiochemotherapy with conventional
MRI can be difficult since reactive alterations to the blood–brain barrier with contrast …

Changed pattern of regional glucose metabolism during yoga meditative relaxation

H Herzog, VR Lele, T Kuwert, KJ Langen… - …, 1990 - karger.com
Using positron emission tomography (PET), measurements of the regional cerebral metabolic
rate of glucose (rCMRGlc) are able to delineate cerebral metabolic responses to external …

Assessment of treatment response in patients with glioblastoma using O-(2-18F-fluoroethyl)-L-tyrosine PET in comparison to MRI

N Galldiks, KJ Langen, R Holy, M Pinkawa… - Journal of Nuclear …, 2012 - Soc Nuclear Med
The assessment of treatment response in glioblastoma is difficult with MRI because reactive
blood–brain barrier alterations with contrast enhancement can mimic tumor progression. In …

Comparison of fluorotyrosines and methionine uptake in F98 rat gliomas

KJ Langen, M Jarosch, H Mühlensiepen… - Nuclear medicine and …, 2003 - Elsevier
The transport mechanisms of O-(2-[ 18 F]fluoroethyl)-L-tyrosine (FET) and 2-[ 18 F]fluoro-L-tyrosine
(FTyr) were compared to those of [ 3 H]-Methyl-L-methionine (MET) in F98 rat glioma …