MAMA-MIAAI - Here We Go Again This is a derived dataset based on the publicly available MAMA-MIA datset [1], which includes Breast MRI scans of 1506 subjects. The original dataset does not include: - Whole breast segmentation masks - Bias field corrected scans In this extended version, we provide: - Whole breast segmentation masks for the first scan of all subjects - N4 bias field corrected MRI scans for every scan of all subjects For detailed information on how this dataset was generated and the segmentation model used please refer to our GitHub repository (https://github.com/FloXyPython/MAMA-MIAAI, https://github.com/FloXyPython/MRI_BreastSeg). Citation: [1]: Garrucho L, Kushibar K, Reidel CA, Joshi S, Osuala R, Tsirikoglou A, Bobowicz M, Del Riego J, Catanese A, Gwoździewicz K, Cosaka ML. A large-scale multicenter breast cancer DCE-MRI benchmark dataset with expert segmentations. Scientific data. 2025 Mar 19;12(1):453.