PSIR segmentation robustness at 7T: a travelling head study

摘要

Ultra-high magnetic field (7T) MRI scanners provides high spatial resolution images and excellent contrast for classifying brain tissue, but robustness of tissue segmentation across sites is key for multi-site studies. Here, we present a subset of the main UK7T travelling-head study focusing on harmonized T_1- weighted images acquired on six subjects at 0.7 mm~3 isotropic resolution across three 7T sites, with five repeats at one site. The aim is to assess the harmonisation of the MP2RAGE sequence across sites, by focusing on segmentation reproducibility.