Figure 1.
Computed tomographic fluoroscopy (CTF)-guided implantation of 125I seeds in an 81-year-old man with squamous carcinoma who did not undergo chemotherapy. (A) Pre-treatment lung window image shows an irregular oval mass in the right upper lobe (arrow), with severe emphysema. (B) Computed tomography (CT) image immediately post-treatment shows multiple high-density 125I seeds distributed within the lesion. (C) CT image obtained 3 months post-treatment reveals that the lesion is significantly decreased in size and partially cavitated.