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Fig. 3 | EJNMMI Research

Fig. 3

From: Prognostic value of simultaneous 18F-FDG PET/MRI using a combination of metabolo-volumetric parameters and apparent diffusion coefficient in treated head and neck cancer

Fig. 3

Case of tongue cancer treatment failure prediction by both MTV and combined PET/MRI parameters. A 50-year-old male underwent preoperative simultaneous 18F-FDG PET/MRI due to a 3.8-cm-sized left tongue cancer. a Fusion image of regional PET with ADC map and b regional PET images showed left tongue mass with hypermetabolism (arrows). c ADC map image demonstrated left tongue mass with diffusion restriction (arrow). d Gadolinium-enhanced T1 axial image revealed mass with peripheral enhancement (arrow). SUVmax (9.73), MTV (35.02), TLG (135.18), ADCmean (424.15), (SUVmax/ADCmean) × 1000 (10.37), (MTV/ADCmean) × 1000 (82.57), and (TLG/ADCmean) × 1000 (318.70) predicted tumor treatment failure. The patient showed tumor treatment failure in pleura, multiple bones, and lymph nodes 6 months after tongue cancer surgery

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