The aim of this study was to investigate the potential of O-(2-18F-fluoroethyl)-l-tyrosine (18F-
FET) PET for differentiating local recurrent brain metastasis from radiation necrosis after …

Background The aim of this study was to investigate the potential of dynamic O-(2-[18F]
fluoroethyl)-L-tyrosine (18F-FET) PET for differentiating local recurrent brain metastasis from …

In patients with brain metastasis, PET using labeled amino acids has gained clinical
importance, mainly regarding the differentiation of viable tumor tissue from treatment-related …

Background After focused high dose radiotherapy of brain metastases, differentiation
between tumor recurrence and radiation-induced lesions by conventional MRI is …

Brain metastases are frequently treated with radiation. It is critical to distinguish recurrent or
progressive brain metastases (RPBM) from late or delayed radiation injury (LDRI). The …

Differentiation between posttherapy radiation necrosis and recurrent tumor in humans with
brain tumor is still a difficult diagnostic task. The new PET tracers 18F-fluoro-ethyl-l-tyrosine …

Purpose We assessed the performance of 6-[18 F]-fluoro-l-3, 4-dihydroxyphenylalanine (F-
DOPA) PET for differentiating radionecrosis (RN) from tumour progression (PD) in a …

Background On conventional diagnostic imaging, the features of radiation necrosis (RN) are
similar to those of local recurrence (LR) of brain metastases (BM). 11 C–methionine positron …

In patients with low-grade glioma (LGG) of World Health Organization (WHO) grade II, early
detection of progression to WHO grade III or IV is of high clinical importance because the …

Purpose Early assessment of tumor response to therapy is vital for treatment optimization for
the individual cancer patient. Induction of apoptosis is an early and nearly universal effect of …