A preliminary study on the effect of motion correction on HARDI reconstruction

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Publication Type pre-print
School or College <blank>
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Creator Gerig, Guido
Other Author Elhabin, Shireen; Gur, Yaniv; Vachet, Clement; Piven, Joseph; Styner, Martin; Leppert, Ilana; Pike, G. Bruce
Title A preliminary study on the effect of motion correction on HARDI reconstruction
Date 2014-01-01
Description Post-acquisition motion correction is widely performed in diffusion-weighted imaging (DWI) to guarantee voxel-wise correspondence between DWIs. Whereas this is primarily motivated to save as many scans as possible if corrupted by motion, users do not fully understand the consequences of different types of interpolation schemes on the final analysis. Nonetheless, interpolation might increase the partial volume effect while not preserving the volume of the diffusion profile, whereas excluding poor DWIs may affect the ability to resolve crossing fibers especially with small separation angles. In this paper, we investigate the effect of interpolating diffusion measurements as well as the elimination of bad directions on the reconstructed fiber orientation diffusion functions and on the estimated fiber orientations. We demonstrate such an effect on synthetic and real HARDI datasets. Our experiments demonstrate that the effect of interpolation is more significant with small fibers separation angles where the exclusion of motion-corrupted directions decreases the ability to resolve such crossing fibers.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
First Page 1055
Last Page 1058
Language eng
Bibliographic Citation Elhabin, S., Gur, Y., Vachet, C., Piven, J., Styner, M., Leppert, I., Pike, G. B., & Gerig, G. (2014). A preliminary study on the effect of motion correction on HARDI reconstruction. Proceedings of the 2014 IEEE International Symposium on Biomedical Imaging (ISBI), 1055-8.
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Format Extent 1,590,857 bytes
Identifier uspace,18958
ARK ark:/87278/s6gn1hdc
Setname ir_uspace
Date Created 2014-10-17
Date Modified 2014-10-20
ID 712692
Reference URL https://collections.lib.utah.edu/ark:/87278/s6gn1hdc
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