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Abstract #2025

Voxel-based comparison of Dynamic Contrast-Enhanced MRI and FDG-PET in head-and-neck cancer

Petra van Houdt 1 , Britt Kunnen 1 , Olga Hamming-Vrieze 1 , Jeroen van de Kamer 1 , and Uulke van der Heide 1

1 Radiation Oncology, the Netherlands Cancer Institute, Amsterdam, Netherlands

This study presents a voxel-based comparison between FDG-PET and dynamic contrast-enhanced (DCE-) MRI for twenty-one patients with head-and-neck cancer. At voxel-level the correlations within the gross tumor volume were higher between SUV and Ktrans and kep compared to the correlations at patient-level. Therefore, it is important to take tumor heterogeneity into account.

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