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A technique for accurate magnetic resonance imaging in the presence of field inhomogeneities
Abstract
A technique for producing geometrically accurate magnetic resonance images (MRIs) with undistorted intensity in the face of high levels of static field inhomogeneity arising from either source is presented. The technique requires the acquisition of two images of the same object with altered gradients. On the basis of a knowledge of these gradients it employs an automatic postprocessing step that exploits some invariant characteristics of the distortions to produce a rectified image from the two acquired images. No phantom imaging is involved and no operator interaction is required. The technique is theoretically justified and compared to other techniques, and experimental results that show that the technique works are presented. The improved accuracy in geometry and intensity may improve reliability of stereotactic surgery, may enhance the feasibility of both clinical and industrial imaging via external fields, and may increase the resolution of microscopic imaging.
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Cited by
Andersson, J. L. R., Skare, S., & Ashburner, J. (2003) · NeuroImage · doi:10.1016/s1053-8119(03)00336-7 · Cited by 3,469
Hill, D. L. G., Batchelor, P. G., Holden, M., & Hawkes, D. J. (2001) · Physics in Medicine and Biology · doi:10.1088/0031-9155/46/3/201 · Cited by 2,093
Twenty‐five pitfalls in the analysis of diffusion MRI data
Jones, D. K., & Cercignani, M. (2010) · NMR in Biomedicine · doi:10.1002/nbm.1543 · Cited by 827
Statistical approach to segmentation of single-channel cerebral MR images
Rajapakse, J. C., Giedd, J. N., & Rapoport, J. L. (1997) · IEEE Transactions on Medical Imaging · doi:10.1109/42.563663 · Cited by 678
Registration of head volume images using implantable fiducial markers
Maurer, C. R., Fitzpatrick, J. M., Wang, M. Y., Galloway, R. L., Maciunas, R. J., & Allen, G. S. (1997) · IEEE Transactions on Medical Imaging · doi:10.1109/42.611354 · Cited by 561
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Metadata
- Authors
- Chang, H., & Fitzpatrick, J. M.
- Venue
- IEEE Transactions on Medical Imaging
- Published
- 1992
- Volume
- 11
- Issue
- 3
- Pages
- 319-329
- ISSN
- 0278-0062 (ISSN-L)
- OpenAlex
- W2139609601
- Cited by
- 425
- References
- 0
- FWCI
- 6.14
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chang, H., & Fitzpatrick, J. M. (1992). A technique for accurate magnetic resonance imaging in the presence of field inhomogeneities. IEEE Transactions on Medical Imaging. https://doi.org/10.1109/42.158935
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
