Figure 8c.
Results of radioembolization in a 65-year-old man with metastatic rectal cancer and liver metastases who had progressed through all other standard chemotherapy options for CRC. (a) Contrast-enhanced baseline CT image demonstrates multifocal heterogeneous hepatic metastases with an ill-defined tumor-liver interface (arrows). Embolization was performed to isolate blood flow from the right hepatic and replaced left hepatic arteries into the liver. (b) Digital subtraction image from a superselective angiographic study of the right hepatic artery shows embolization of branches of the right and left gastric and gastroduodenal arteries (arrows) with 90Y-coated microspheres. (c) Anterior planar scintigraphic image demonstrates selective increased radiotracer uptake in the right hepatic lobe (arrows). The left hepatic lobe is not visualized, and no foci of increased uptake are seen in the lungs. (d) On a follow-up CT image obtained 1 month after radioembolization, the metastases in the right lobe (arrows) show a decrease in attenuation and a slight increase in size.