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dc.contributor.authorCaruyer, Emmanuel
dc.contributor.authorAganj, Iman
dc.contributor.authorLenglet, Christophe
dc.contributor.authorSapiro, Guillermo
dc.contributor.authorDeriche, Rachid
dc.date.accessioned2013-05-01T17:33:51Z
dc.date.issued2013
dc.identifier.citationCaruyer, Emmanuel, Iman Aganj, Christophe Lenglet, Guillermo Sapiro, and Rachid Deriche. 2013. Motion detection in diffusion MRI via online ODF estimation. International Journal of Biomedical Imaging 2013:849363.en_US
dc.identifier.issn1687-4188en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:10605428
dc.description.abstractThe acquisition of high angular resolution diffusion MRI is particularly long and subject motion can become an issue. The orientation distribution function (ODF) can be reconstructed online incrementally from diffusion-weighted MRI with a Kalman filtering framework. This online reconstruction provides real-time feedback throughout the acquisition process. In this article, the Kalman filter is first adapted to the reconstruction of the ODF in constant solid angle. Then, a method called STAR (STatistical Analysis of Residuals) is presented and applied to the online detection of motion in high angular resolution diffusion images. Compared to existing techniques, this method is image based and is built on top of a Kalman filter. Therefore, it introduces no additional scan time and does not require additional hardware. The performance of STAR is tested on simulated and real data and compared to the classical generalized likelihood ratio test. Successful detection of small motion is reported (rotation under 2°) with no delay and robustness to noise.en_US
dc.language.isoen_USen_US
dc.publisherHindawi Publishing Corporationen_US
dc.relation.isversionofdoi:10.1155/2013/849363en_US
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3594974/pdf/en_US
dash.licenseLAA
dc.titleMotion Detection in Diffusion MRI via Online ODF Estimationen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalInternational Journal of Biomedical Imagingen_US
dash.depositing.authorAganj, Iman
dc.date.available2013-05-01T17:33:51Z
dc.identifier.doi10.1155/2013/849363*
dash.contributor.affiliatedAganj, Iman


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