TY - JOUR SN - 2052-4463 A1 - Holmlund William A1 - Simkó Attila A1 - Söderkvist Karin A1 - Palásti Péter A1 - Tótin Szilvia A1 - Kalmár Kamilla A1 - Domoki Zsófia A1 - Fejes Zsuzsanna A1 - Kincses Zsigmond Tamás A1 - Brynolfsson Patrik A1 - Nyholm Tufve N2 - Manual segmentations are considered the gold standard for ground truth in machine learning applications. Such tasks are tedious and time-consuming, albeit necessary to train reliable models. In this work, we present a dataset with expert segmentations of the prostatic zones and urethra for 200 randomly selected patients from the PROSTATEx dataset. Notably, independent duplicate segmentations were performed for 40 patients, providing inter-reader variability data. This results in a total of 240 segmentations. This dataset can be used to train machine learning models or serve as an external test set for evaluating models trained on private data, thereby addressing a current gap in the field. The delineated structures and terminology adhere to the latest Prostate Imaging Reporting and Data Systems v2.1 guidelines, ensuring consistency. AV - public UR - https://doi.org/10.1038/s41597-024-03945-2 Y1 - 2024/// EP - 5 TI - ProstateZones ? Segmentations of the prostatic zones and urethra for the PROSTATEx dataset ID - publicatio34850 IS - 1 VL - 11 JF - SCIENTIFIC DATA ER -