TY - JOUR A1 - Maerz, Manuel A1 - Treutwein, Marius A1 - Nabo, Jan A1 - Dobler, Barbara T1 - Three-dimensional printers applied for the production of beam blocks in total body irradiation treatment JF - Journal of Applied Clinical Medical Physics N2 - Purpose: Total body irradiation (TBI) in extended source surface distance (SSD) is a common treatment technique before hematopoietic stem cell transplant. The lungs are organs at risk, which often are treated with a lower dose than the whole body. Methods: This can be achieved by the application of blocks. Three-dimensional (3D) printers are a modern tool to be used in the production process of these blocks. Results: We demonstrate the applicability of a specific printer and printing material, describe the process, and evaluate the accuracy of the product. Conclusion: The blocks and apertures were found to be applicable in clinical routine. KW - 3D printer KW - electron beam apertures KW - photon beam blocks KW - Radiotherapy KW - STEM-CELL TRANSPLANTATION KW - TBI KW - total body irradiation Y1 - 2022 U6 - https://doi.org/10.1002/acm2.13592 VL - 23 IS - 5 SP - 1 EP - 8 PB - Wiley ER -