Fig. 1From: Combined PET/CT-perfusion in patients with head and neck cancers might predict failure after radio-chemotherapy: a proof of concept study71 yo male with squamous cell carcinoma of the larynx. PET/CT. 1a–c axial PET, PET/CT, CT with contrast. Pre-therapeutic scan showing the tumor (arrow). 2a–c axial PET, PET/CT, CT with contrast. Post-therapeutic scan showing the residual reactive changes without tumor (arrow)Back to article page