Hi all, Now that I have access to the Task 1 data, I had a few clarifying questions before starting preprocessing: 1. The training and validation archives are named ..._batch1.zip. Should we expect additional batches before the validation phase, or is batch1 the complete release with the suffix reserved for potential future corrections? 2. Could you clarify the contents and intended use of MICCAI-LH-BraTS2025-MET-Challenge-corrected-labels_batch1.zip (~20 KB)? Specifically: are the corrections already merged into the main TrainingData_batch1.zip, or is this file meant to be applied as an overlay/patch on top of the original labels? 3. The filenames reference BraTS2025, is the 2026 Task 1 dataset identical to the 2025 release, or are there 2026-specific additions that will arrive separately? Thanks for the clarification, and looking forward to working with the data.

Created by Andrés Felipe Romero Grajales afromerogr
@afromerogr Thanks for reaching out. Please note that the 2026 METs Batch 1 dataset is identical to the 2025 version. We plan to release a new batch shortly, so we have added a _batchX suffix to help distinguish between them. Regarding the segmentation masks: please use the versions provided in the separate corrected folder, as these are the final corrected masks. You will need to manually replace the original masks in the training set with these updated files. Please let us know if you have any further questions. /Mehdi

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