Can imaging patterns of neuroendocrine hepatic metastases predict response yttruim-90 radioembolotherapy?

Figure 2 Computed tomography image of the abdomen following IV contrast. A: 56-year-old male with islet cell cancer. The lesion in the liver is iso enhancing relative to the liver (arrow); B: 58-year-old male with islet cell cancer. The lesions in the liver are less than 50% necrosis and hyper; C: 77-year-old male with islet cell cancer. The lesion in the liver is more than 50% necrosis; D: 58-year-old male with islet cell cancer. The lesion in the liver is more than 50% necrosis in the post-treatment enhancing relative to the liver; E: 58-year-old male with islet cell cancer. The lesion in the liver demonstrates less than 50% necrosis on the pre-treatment images.