Radioembolization is a minimally invasive therapy used to treat liver cancer and other liver tumors. It involves the injection of tiny radioactive beads directly into the blood supply of the tumors, where they release radiation to target and destroy cancer cells while minimizing damage to surrounding healthy tissue. This targeted therapy is often used when conventional treatments like surgery or chemotherapy are not effective or suitable for the patient. Radioembolization has shown promising results in improving overall survival rates and quality of life for patients with liver tumors.