Figure 2.

The peripheral dose distribution of a radioactive seed chain (0.5 mCi, 5 seeds, 5-mm interval) (A) with the changes in the dose distribution after 1-cm vertical movement (B) were shown. The peripheral dose distribution of an extra seed placed on the end of a radioactive seed chain (C.,) and the change in the dose distribution after 1-cm vertical moment (D.) were also manifested. The seeds were shown in the image as yellow dots. E. Cumulative survival curve of 84 patients with pancreatic cancer. VM: vertical movement.