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Updated: Nov 21, 2025

PET and MRI Guided Irradiation of a Glioblastoma Rat Model Using a Micro-irradiator
Published on: December 28, 2017
Initial experience with introducing national guidelines for CT- and MRI-based delineation of organs at risk in
Caroline Olsson1,2, Tufve Nyholm3, Elinore Wieslander4
1Department of Radiation Physics, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Sweden.
Abstract:
A fundamental problem in radiotherapy is the variation of organ at risk (OAR) volumes. Here we present our initial experience in engaging a large Radiation Oncology (RO) community to agree on national guidelines for OAR delineations. Our project builds on associated standardization initiatives and invites professionals from all radiotherapy departments nationwide. Presently, one guideline (rectum) has successfully been agreed on by a majority vote. Reaching out to all relevant parties in a timely manner and motivating funding agencies to support the work represented early challenges. Population-based data and a scalable methodological approach are major strengths of the proposed strategy.
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