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. 2018 Dec 14;24(46):5280–5287. doi: 10.3748/wjg.v24.i46.5280

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©The Author(s) 2018. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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The procedure for 3D-printed coplanar template-assisted iodine-125 seed implantation and dosimeter analysis. A: Preoperative computed tomography demonstrated a pancreatic uncinate process carcinoma. B: A preoperative treatment planning system was used to program the puncture route and iodine-125 seed distribution. The pseudo green color indicated the designed V90 area, and the red points were the ideal iodine-125 seed position. C: With 3D-printed coplanar template assistance, the implantation needles were inserted in a parallel fashion into the lesion to avoid vessels and traversing the intestine. D: Postoperative dosimeter analysis demonstrated the V90 area (green color region) covering the entire tumor.