2023
DOI: 10.1002/mrm.29573
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Reconstruction for 7T high‐resolution whole‐brain diffusion MRI using two‐stage N/2 ghost correction and L1‐SPIRiT without single‐band reference

Abstract: Purpose: To combine a new two-stage N/2 ghost correction and an adapted L1-SPIRiT method for reconstruction of 7T highly accelerated whole-brain diffusion MRI (dMRI) using only autocalibration scans (ACS) without the need of additional single-band reference (SBref) scans. Methods:The proposed ghost correction consisted of a 3-line reference approach in stage 1 and the reference-free entropy method in stage 2. The adapted L1-SPIRiT method was formulated within the 3D k-space framework.Its efficacy was examined … Show more

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