ProstateZones – Segmentations of the prostatic zones and urethra for the PROSTATEx dataset

William Holmlund, Attila Simkó, Karin Söderkvist, Péter Palásti, Szilvia Tótin, Kamilla Kalmár, Zsófia Domoki, Zsuzsanna Fejes, Zsigmond Tamás Kincses, Patrik Brynolfsson, Tufve Nyholm

Keywords: Public data, Automatic segmentations, Prostate, Prostatic zones, Urethra

TL;DR: A publicly available dataset with manual segmentations of the prostatic zones and urethra.

Abstract: Manual segmentations are considered the gold standard for training and evaluating machine learning models in medical imaging, although difficult to obtain due to the time-consuming and labor-intensive nature of the task. We present a curated dataset of manual segmentations of the prostatic zones and intraprostatic urethra for 200 patients from the publicly available PROSTATEx dataset. For 40 patients, independent duplicate segmentations are included to provide inter-reader variability data, resulting in 240 total segmentations. The terminology follows the PI-RADS v2.1 guidelines, ensuring consistency and clinical relevance. This dataset fills a critical gap by offering a publicly available resource for training, benchmarking, and external validation of prostate MRI segmentation models.

Submission Number: 24