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MRI-PET Registration with Automated Algorithm
Abstract
OBJECTIVE: We have previously reported an automated method for within-modality (e.g., PET-to-PET) image alignment. We now describe modifications to this method that allow for cross-modality registration of MRI and PET brain images obtained from a single subject. METHODS: This method does not require fiducial markers and the user is not required to identify common structures on the two image sets. To align the images, the algorithm seeks to minimize the standard deviation of the PET pixel values that correspond to each MRI pixel value. The MR images must be edited to exclude nonbrain regions prior to using the algorithm. RESULTS AND CONCLUSION: The method has been validated quantitatively using data from patients with stereotaxic fiducial markers rigidly fixed in the skull. Maximal three-dimensional errors of < 3 mm and mean three-dimensional errors of < 2 mm were measured. Computation time on a SPARCstation IPX varies from 3 to 9 min to align MR image sets with [18F]fluorodeoxyglucose PET images. The MR alignment with noisy H2(15)O PET images typically requires 20-30 min.
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Cited by
Jenkinson, M., Bannister, P., Brady, M., & Smith, S. (2002) · NeuroImage · doi:10.1006/nimg.2002.1132 · Cited by 11,888
Multimodality image registration by maximization of mutual information
Maes, F., Collignon, A., Vandermeulen, D., Marchal, G., & Suetens, P. (1997) · IEEE Transactions on Medical Imaging · doi:10.1109/42.563664 · Cited by 4,547
Forman, S. D., Cohen, J. D., Fitzgerald, M., Eddy, W. F., Mintun, M. A., & Noll, D. C. (1995) · Magnetic Resonance in Medicine · doi:10.1002/mrm.1910330508 · Cited by 3,202
Mapping cortical change across the human life span
Sowell, E. R., Peterson, B. S., Thompson, P. M., Welcome, S. E., Henkenius, A. L., & Toga, A. W. (2003) · Nature Neuroscience · doi:10.1038/nn1008 · Cited by 2,328
Subcortical and cortical brain activity during the feeling of self-generated emotions
Damasio, A. R., Grabowski, T. J., Bechara, A., Damasio, H., Ponto, L. L. B., Parvizi, J., & Hichwa, R. D. (2000) · Nature Neuroscience · doi:10.1038/79871 · Cited by 2,117
Metadata
- Authors
- Woods, R. P., Mazziotta, J. C., & R. Cherry, A. S.
- Venue
- Journal of Computer Assisted Tomography
- Published
- 1993-07
- Volume
- 17
- Issue
- 4
- Pages
- 536-546
- ISSN
- 0363-8715 (ISSN-L)
- OpenAlex
- W2051809205
- Cited by
- 1,617
- References
- 0
- FWCI
- 62.52
- Type
- journal article
- Language
- en
- Open access
- closed
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- Woods, R. P., Mazziotta, J. C., & R. Cherry, A. S. (1993). MRI-PET Registration with Automated Algorithm. Journal of Computer Assisted Tomography. https://doi.org/10.1097/00004728-199307000-00004
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