Editor-in-Chief Emeritus Pick of Papers
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For each issue of Radiotherapy and Oncology, the Editor-in-Chief Emeritus Jens Overgaard, picks his favourite papers.
- Up to the late nineties, most departments used Cobalt-60 (Co-60) Units for radiation therapy (RT) for superficially located indications, including postmastectomy RT (PMRT) for early breast cancer. With the transition to linear accelerator photon-based RT, bolus material was often added to allow for a similar surface dose distribution as received with the Co-60 machines due to the skin sparing effect of photons . Bolus serves as a tissue equivalent material that shifts the 95–100% isodose towards the skin and subcutaneous tissue (depending on the thickness of bolus and subcutaneous tissue) .
- Delineation of target and ‘organ at risk’ volumes is a critical part of modern radiation therapy planning, the next essential step after deciding the indication, patient discussion and image acquisition. Adoption of volume-based treatment planning for non-metastatic breast cancer has increased greatly along with the use of improved planning techniques, essential for modern therapy. However, identifying the volumes on a planning CT is no easy task. The current paper is written by ESTRO’s breast course faculty, providing tricks and tips for target volume definition and delineation for optimal postoperative breast cancer irradiation.
- Accurate organs at risk definition is essential for radiation treatment of brain tumors. The aim of this study is to provide a stepwise and simplified contouring guide to delineate the OARs in the brain as it would be done in the everyday practice of planning radiotherapy for brain cancer treatment.