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. 2024 Dec 12;166(1):499. doi: 10.1007/s00701-024-06393-4

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Preoperative virtual planning in Brainlab Elements software, using MRI T2 and contrast enhanced T1 sequences (A&B), cranial CT scans (C&D) and 68Ga-DOTATOC PET/CT scans (E&F). Tumor margins are defined by the treating surgeons (red lines), bony resection margins are defined (blue lines) and externally planned cutting guides (yellow lines) and implant margins (green lines) are later merged as STL files into the Brainlab planning (A-F)