TY - JOUR AU - Goudschaal, Karin AU - Beeksma, F. AU - Boon, M. AU - Bijveld, M. AU - Visser, J. AU - Hinnen, K. AU - van Kesteren, Z. PY - 2021 DA - 2021/02/19 TI - Accuracy of an MR-only workflow for prostate radiotherapy using semi-automatically burned-in fiducial markers JO - Radiation Oncology SP - 37 VL - 16 IS - 1 AB - The benefit of MR-only workflow compared to current CT-based workflow for prostate radiotherapy is reduction of systematic errors in the radiotherapy chain by 2–3 mm. Nowadays, MRI is used for target delineation while CT is needed for position verification. In MR-only workflows, MRI based synthetic CT (sCT) replaces CT. Intraprostatic fiducial markers (FMs) are used as a surrogate for the position of the prostate improving targeting. However, FMs are not visible on sCT. Therefore, a semi-automatic method for burning-in FMs on sCT was developed. Accuracy of MR-only workflow using semi-automatically burned-in FMs was assessed and compared to CT/MR workflow. SN - 1748-717X UR - https://doi.org/10.1186/s13014-021-01768-8 DO - 10.1186/s13014-021-01768-8 ID - Goudschaal2021 ER -