Response evaluation after chemoradiotherapy for advanced nodal disease in head and neck cancer using diffusion-weighted MRI and 18F-FDG-PET–CT

Evaluation of accuracy and interobserver variation of diffusion-weighted magnetic resonance imaging (DW-MRI) and 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDGPET-CT) to detect residual lymph node metastases after chemoradiotherapy (CRT) in advanced staged head and neck squamous cell carcinoma (HNSCC).Retrospectively, routinely performed DW-MRI (n=73) and 18F-FDG-PET-CT (n=58) 3months after CRT in HNSCC-patients...