The previous module, BIDS and JSON, ensured that you were familiar with how and why to convert data to meet the BIDS specification. You also learned about the role that JSON files play in the BIDS specification. With that background, you are ready to take a deeper dive into working with those JSON files to prepare them for BIDS apps that do susceptibility distortion correction.

Goals This module will help you integrate knowledge about MRI scans and BIDS to solve an important problem with EPI (echoplanar) images. EPI images (dMRI, fMRI, and ASL) are especially important because they are susceptible to distortion and are often central to our neuroimaging projects.

Module Description This module describes (1) the distortion problem in EPI MRI scans, (2) the field map and/or pepolar images to correct those distortions, and (3) how BIDS apps require special information to implement the distortion corrections. The module consists of three lessons:

This reading assignment,
A general lesson about SDC, and
A practice that involves editing the JSON sidecars to provide the special information some BIDS apps require.

🔵 SDC 1: Rd