Figure 3.

Seventy-year-old woman with a nodule in liver segment 4. (A) Tumor exhibited increased ¹¹C-acetate uptake (TNR_Ace: 2.17). (B) In contrast, subtle ¹⁸F-FDG uptake was shown (TNR_FDG 1.92). (C) Initial arterial phase image of dynamic CT. (D) She was a responder after TACE. Three months after TACE, compact lipiodol retention was observed without an arterial enhancement lesion. A benign hepatic cyst is observed in liver segment 8. CT = computed tomography, ¹⁸F-FDG = ¹⁸F-fluoro-D-glucose, TACE = transarterial chemoembolization, TNR_Ace = maximum tumor SUV to mean normal liver SUV ratio of ¹¹C-acetate, TNR_FDG = maximum tumor SUV to mean normal liver SUV ratio of ¹⁸F-FDG.