Research progress of functional magnetic resonance imaging in evaluating the effect of minimally invasive treatments for hepatocellular carcinoma

Hepatocellular carcinoma is one of the most common malignant tumors. Currently, transcatheter arterial chemoembolization (TACE), radiofrequency ablation (RFA), and high intensity focused ultrasound(HIFU) have been suggested as the preferred treatments in addition to surgery. Because of the limitations of these therapies, residual or recurrent appear frequently. It's very important to accurately evaluate the therapeutic effects at postoperative stage. In recent years, diffusion weighted imaging (DWI), perfusion weighted imaging (PWI), magnetic resonance spectroscopy(MRS) play important roles in early detection and postoperative evaluation of hepatocellular carcinoma (HCC). (authors)