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MRI preplan workflow. (a) The needles positions proposed by the TPS are shown in orange and superimposed on the MR images with the implant in place. (b) Proposed transvaginal needles are identified to the corresponding holes in the ring applicator (labeled 1 to 9 in the picture). (c) Manual adjustments are performed to fit the angulation of the IU tube and to fine-tune needles positions, and dose is optimized to ensure adequate target coverage and OARs sparing with the proposed implant.
