Irinotecan-Eluting Beads in Treating Patients With Refractory Metastatic Colon or Rectal Cancer That Has Spread to the Liver

liver metastases, mucinous adenocarcinoma of the colon, mucinous adenocarcinoma of the rectum, recurrent colon cancer, recurrent rectal cancer, signet ring adenocarcinoma of the colon, signet ring adenocarcinoma of the rectum, stage iva colon cancer, stage iva rectal cancer, stage ivb colon cancer, stage ivb rectal cancer, interventional