Rapid gradient-recalled echo line scanning with crisp line profiles for human MRI at 7 Tesla

Motivation: Line-scanning trades coverage for speed and resolution in a single direction, suitable for the study of mesoscale structure and functional dynamics across cortical depth. However, at ultra high-field strength, the sampling rate is constrained by the specific absorption rate. Goal(s): Facilitate Rapid gradient-recalled echo line scanning with crisp line profiles for human MRI at 7 Tesla. Approach: A new line-scan Tip-Down Tip-Up based preparation module. Results: Using the proposed preparation module, it is possible to perform gradient-recalled echo line scanning experiments with short TR and crisp line profiles. Impact: Using the proposed preparation module, it is possible to perform gradient-recalled echo line scanning experiments with short TR and crisp line profiles. Such advances can be used to study functional dynamics across cortical depth with high sampling rates.