There is a new public MRI dataset available: The dataset contains 557 MRI images of the brain of a single healthy male volunteer:
• scans were acquired on 116 different MRI machines
• For some scanners, the volunteer was scanned in several imaging sessions with different MRI protocol setting.
• Altogether the dataset includes data from 157 imaging sessions with 3-5 repeated scans in each session

The dataset can be downloaded at
https://www.kaggle.com/datasets/ukeppend...

This dataset  offers a unique possibility to study intra- and inter-scanner variabilities
of brain quantification tool.