Clinical Trial

Radionecrosis and FDG PET

Study Description

Radionecrosis and FDG PET

Gliomas are the most common malignant primary central nervous system (CNS) tumours. When high-grade gliomas (HGG) recur, subsequent magnetic resonance (MRI) imaging, with additional sequences is required.The Positron Emission Tomography (PET) radiotracer [18F]-fluorodeoxyglucose (FDG) will be used in this study to distinguish between changes seen on MRI which can be a reflection of pseudoprogression, radiation necrosis, or recurrence.


Locations Selected Location


No pharmaceutical medication involved No pharmaceutical medication involved
Recruiting patients only Recruiting patients only

Positron Emission Tomography Imaging

Participants will receive an intravenous injection of 250 MBq (megabecquerels) of 18F-Fluorodeoxyglucose (18F-FDG). The first Positron Emission Tomography (PET) acquisition of the head will occur one hour post-injection. The second acquisition will take place 3 hours post-injection. Both early and late PET images will be manually co-registered with the participant's most recent magnetic resonance images.

Additional Information

Official Study Title

A Dual Time Point FDG-PET to Differentiate Between Recurrent Brain Tumor and Radionecrosis

Clinical Trial ID


ParticipAid ID