Reducing aliasing-induced artifacts in BLADE sequence using extended-FOV reconstruction

Motivation: BLADE (PROPELLER) is robust to motion but more prone to aliasing-induced artifacts. Goal(s): To minimize aliasing-induced artifacts in BLADE(PROPELLER) sequence. Approach: Utilizing GRAPPA method to extend FOV for each blade in reconstruction. Pre-scan data is used to calibrate the GRAPPA kernels for each blade. Results: Proposed method can effectively eliminate aliasing-induced artifacts. Impact: The extended-FOV method can be integrated seamlessly into the existing scanning process without requiring additional scan time, to effectively eliminate aliasing-induced artifacts.