3D shape context surface registration for cortical mapping

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dc.contributor.authorAcosta, Oen_AU
dc.contributor.authorFripp, Jen_AU
dc.contributor.authorRueda, Aen_AU
dc.contributor.authorXiao, Den_AU
dc.contributor.authorBonner, Een_AU
dc.contributor.authorBourgeat, Pen_AU
dc.contributor.authorSalvado, Oen_AU
dc.date.accessioned2010-08-23T02:59:25Zen_AU
dc.date.available2010-08-23T02:59:25Zen_AU
dc.date.issued2010-04-16en_AU
dc.date.statistics2010-04-16en_AU
dc.description.abstractDeformable registration of cortical surfaces facilitates longitudinal and intergroup comparisons of cortical structure and function in the study of many neurodegenerative diseases. Non-rigid cortical matching is a challenging task due to the large variability between individuals and the complexity of the cortex. We present a new framework for computing cortical correspondences on brain surfaces based on 3D Shape Context and mean curvatures of partially flattened surfaces (PFS). Our approach is scale invariant and provides an accurate and anatomically meaningful alignment across the population. Registering PFS, instead of original cortical surfaces, simplifies the determination of shape correspondences, overcoming the problem of intersubject variability, while still guaranteeing the alignment of the main brain lobes and folding patterns. We validated the approach using 30 segmented brains from the OASIS database registered to a common space and compared the results with Freesurfer. In average, mean absolute distance of 0.36 and Hausdorff distance of 5.06 between moving and target surfaces are obtained. Further localization of labelled areas on each hemisphere demonstrated the accuracy of the technique.en_AU
dc.identifier.articlenumberProceedings of the 2010 IEEE International Symposium on Biomedical Imaging: from Nano to Macroen_AU
dc.identifier.booktitleProceedings of the 2010 IEEE International Symposium on Biomedical Imaging: from Nano to Macroen_AU
dc.identifier.citationAcosta, O., Fripp, J., Rueda, A., Xiao, D., Bonner, E., Bourgeat, P., & Salvado, O. (2010). 3D shape context surface registration for cortical mapping. 2010 IEEE International Symposium on Biomedical Imaging: from Nano to Macro (ISBI 2010), 14th – 17th April 2010. In Proceedings of the 2010 IEEE International Symposium on Biomedical Imaging: from Nano to Macro (pp. 1021-1024). Rotterdam, Netherlands: De Doelen. doi:10.1109/ISBI.2010.5490163en_AU
dc.identifier.conferenceenddate17 April 2010en_AU
dc.identifier.conferencename2010 IEEE International Symposium on Biomedical Imaging: from Nano to Macro (ISBI 2010)en_AU
dc.identifier.conferenceplaceRotterdam, Netherlandsen_AU
dc.identifier.conferencestartdate4 April 2010en_AU
dc.identifier.govdoc2481en_AU
dc.identifier.isbn9781424441259en_AU
dc.identifier.issn1945-7928en_AU
dc.identifier.pagination1021-1024en_AU
dc.identifier.placeofpublicationRotterdam, Netherlandsen_AU
dc.identifier.urihttp://dx.doi.org/10.1109/ISBI.2010.5490163en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2301en_AU
dc.language.isoenen_AU
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en_AU
dc.subjectMappingen_AU
dc.subjectSurfacesen_AU
dc.subjectMagnetic resonanceen_AU
dc.subjectBrainen_AU
dc.subjectShapeen_AU
dc.subjectDiseasesen_AU
dc.title3D shape context surface registration for cortical mappingen_AU
dc.typeConference Presentationen_AU
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