Description: This activity comprises the development and tuning of a software tool that can produce digital MRI brain phantoms, which simulate relaxation rate distributions of real target studies.
Digital brain phantoms are needed to assess the performance of segmentation methods, providing a gold standard, against which compare the segmentation produced by the softwares.
The phantom is composed of 17 tissue compartment and an optional abnormal white matter compartment, simulating MS lesions.
The software has four head models, two normal volunteers and two MS models. Currently the software allow to manually specify the mean signal intensities of the compartments, orientation, position, noise and other parameters or derive them from a target study, segmented automatically by our segmentation software, optionally warping the phantom to the target study.
Four sample phantoms, one for each model, and the custom phantoms are available for download at this link.