Lay Summary Patients with diffuse gliomas undergo MRI scans after treatment to monitor tumor growth. However, it can be difficult to distinguish between normal treatment effects and tumor growth on these MRI scans. This study evaluated the added value of ¹⁸FFET-PET scans, providing additional information on metabolic tissue activity, in 41 glioma patients with uncertain MRI findings. The ¹⁸FFET-PET scans influenced clinical decisions in over half of the patients, and early use appeared to prevent unnecessary treatments and MRI scans. These results suggest that prompt use of ¹⁸FFET-PET can improve patient care, although larger studies are needed to determine the optimal timing.
Braat et al. (Mon,) studied this question.
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