Inclusion Criteria:  Patients who will be initially diagnosed as HCC and plan to receive TACE, or combined with ablation as first-line treatment Age from 18 - 75 Sign ICF （Informed consent form） mainly stage B patients with Child-Pugh class A or B liver function and an ECOG score of 0-2; multiple nodular tumors; a main portal vein that is not completely blocked or is completely blocked but the compensatory collateral blood vessels have formed between the hepatic artery and portal vein  Exclusion Criteria:  Women who are pregnant, lactating Contraindications to MRI Contrast media: Hypersensitivity General contraindications to MRI such as pacemaker, severe claustrophobia etc. Patients who received or plan to take other treatment (resection, chemical, immunotherapy drugs that will systemic effect survival) before TACE combined with ablation  Patients with Contraindications of TACE or ablation :  Severe liver dysfunction (Child-Pugh class C), including jaundice, hepatic encephalopathy, refractory ascites, or hepatorenal syndrome; severe coagulation dysfunction that cannot be corrected; completely embolized main portal vein with few collateral blood vessels formed; wide distant metastasis with an estimated survival of < 3 months; significant reductions in peripheral blood leukocytes and platelets, white blood cell (WBC) count < 3.0 × 109/L (when due to hypersplenism but not toxicity of chemotherapy; therefore, it is not an absolute contraindication for TACE), and platelets < 50 × 109/L;