462-02-001 ISMRM Abstract

An improved estimation method for field inhomogeneity maps in distorted brain EPI using anatomical regularization

Primary: Analysis Methods - Image Registration and Alignment

Secondary: Diffusion - Diffusion Analysis & Visualization

462-02-001 · Diffusion MRI Neuroscience · Tuesday, 12 May, 9:15 AM–10:10 AM · Digital Posters Row C

Keywords: Echo-planar imaging Susceptibility-induced geometric distortion Magnetic field inhomogeneity

Accepted

Seiji Kumazawa ¹, Takashi Yoshiura²

¹Department of Radiological Technology, Faculty of Health Sciences, Hokkaido University of Science, Sapporo, Japan

²Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima-shi, Japan

Presenting Author: Seiji Kumazawa

Synopsis

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References

1. Andersson JLR, Skare S, Ashburner J. How to correct susceptibility distortions in spin-echo echo-planar images: application to diffusion tensor imaging. Neuroimage. 2003;20(2):870-88. doi: 10.1016/S1053-8119(03)00336-7. [doi]

2. Bhushan C, Haldar JP, Choi S, Joshi AA, Shattuck DW, Leahya RM. Co-registration and distortion correction of diffusion and anatomical images based on inverse contrast normalization. Neuroimage. 2015; 115(7): 269–80. doi: 10.1016/j.neuroimage.2015.03.050 [doi]

3. Kumazawa S, Yoshiura T. Estimation of undistorted images in brain echo-planar images with distortions using the conjugate gradient method with anatomical regularization. Med Phys. 2022 49(12):7531-7544. doi: 10.1002/mp.15881. [doi]

4. Maes F, Collignon A, Vandermeulen D, Marchal G, Suetens P, Multimodality image registration by maximization of mutual information, IEEE Trans Med Imaging. 1997 Apr;16(2):187-98. doi: 10.1109/42.563664. [doi]

5. Collins DL, Zijdenbos AP, Kollokian V, et al. Design and construction of a realistic digital brain phantom. IEEE Trans Med Imaging. 1998. 17 (3):463-468. doi: 10.1109/42.712135. [doi]

6. Yoder DA, Zhao Y, Paschal CB, Fitzpatrick JM. MRI simulator with object-specific field map calculations. Magn Reson Imaging. 2004; 22(3):315-28. doi: 10.1016/j.mri.2003.10.001. [doi]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/462-02-001