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Figure 3. Functional liver recovery as imaged by serial longitudinal SC SPECT/CT in a CP-A patient who received multiple prior liver-directed therapies (chemoembolization, radiofrequency ablation, ethanol injection). (A) Radiation treatment isodose lines overlaid with pre-treatment SC SPECT/CT scan; (B) 2 months post-RT showing functional liver loss at 20 Gy and above; (C) 3 years post-RT showing functional liver recovery in regions that received 10-30 Gy. SC: Sulfur colloid; CP: child-pugh; RT: radiotherapy.