Observational Study for SIR-Spheres Therapy for the Treatment of Unresectable Metastatic Liver Tumors From Primary Colorectal Cancer

Exclusion Criteria

• •1. Special contraindications from package insert, which includes
• •1. Markedly abnormal liver function tests, such as total bilirubin \> 2.0 mg/dL or albumin \<3.0 g/dL
• •2. Portal vein thrombosis in the main trunk
• •3. Disseminated extrahepatic disease
• •4. Previous external beam radiation therapy to the liver
• •2. Women are lactating or pregnant during the study or plan to be pregnant during the study
• •3. Patients with mental illness or cognitive impairment
• •4. Per investigator, patients are non-adherent or reluctant to be followed up