CT-Guided ¹²⁵I Seed Interstitial Brachytherapy as a Salvage Treatment for Recurrent Spinal Metastases after External Beam Radiotherapy

Figure 1

Representative CT scans of a patient during ¹²⁵I brachytherapy. (a) Spine metastases recurrence (arrow: red) from breast cancer after surgery, EBRT (40 Gy/20 f), and chemotherapy. Clips (arrow: blue) attached to the skin to determine the needle entry point. (b-c) An applicator accurately inserted into the metastases to implant ¹²⁵I seeds. (d) Immediate postoperative CT scan images showing uniform distribution of ¹²⁵I seeds within the tumor.

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