Radiotherapy as valid modality for hepatocellular carcinoma with portal vein tumor thrombosis

Figure 2 Radiation dose distribution according to radiotherapy technique. More conformal dose delivery to the main mass and tumor thrombosis with a reduced liver dose is achievable with 3D-CRT, IMRT, and SABR, as well as to an even greater extent with proton beam RT. 3D-CRT: Three-dimensional conformal RT; IMRT: Intensity-modulated RT; SABR: Stereotactic body ablative RT. RT: Radiotherapy technique.