Please use this identifier to cite or link to this item: https://doi.org/10.1007/s10278-008-9132-1
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dc.title3D segmentation and quantification of a masticatory muscle from MR data using patient-specific models and matching distributions
dc.contributor.authorNg, H.P.
dc.contributor.authorOng, S.H.
dc.contributor.authorLiu, J.
dc.contributor.authorHuang, S.
dc.contributor.authorFoong, K.W.C.
dc.contributor.authorGoh, P.S.
dc.contributor.authorNowinski, W.L.
dc.date.accessioned2014-09-18T10:00:40Z
dc.date.available2014-09-18T10:00:40Z
dc.date.issued2009-10
dc.identifier.citationNg, H.P., Ong, S.H., Liu, J., Huang, S., Foong, K.W.C., Goh, P.S., Nowinski, W.L. (2009-10). 3D segmentation and quantification of a masticatory muscle from MR data using patient-specific models and matching distributions. Journal of Digital Imaging 22 (5) : 449-462. ScholarBank@NUS Repository. https://doi.org/10.1007/s10278-008-9132-1
dc.identifier.issn08971889
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/79956
dc.description.abstractA method is proposed for 3D segmentation and quantification of the masseter muscle from magnetic resonance (MR) images, which is often performed in pre-surgical planning and diagnosis. Because of a lack of suitable automatic techniques, a common practice is for clinicians to manually trace out all relevant regions from the image slices which is extremely time-consuming. The proposed method allows significant time savings. In the proposed method, a patient-specific masseter model is built from a test dataset after determining the dominant slices that represent the salient features of the 3D muscle shape from training datasets. Segmentation is carried out only on these slices in the test dataset, with shape-based interpolation then applied to build the patient-specific model, which serves as a coarse segmentation of the masseter. This is first refined by matching the intensity distribution within the masseter volume against the distribution estimated from the segmentations in the dominant slices, and further refined through boundary analysis where the homogeneity of the intensities of the boundary pixels is analyzed and outliers removed. It was observed that the left and right masseter muscles' volumes in young adults (28.54 and 27.72cm 3) are higher than those of older (ethnic group removed) adults (23.16 and 22.13cm 3). Evaluation indicates good agreement between the segmentations and manual tracings, with average overlap indexes for the left and right masseters at 86.6% and 87.5% respectively. © 2008 Society for Imaging Informatics in Medicine.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1007/s10278-008-9132-1
dc.sourceScopus
dc.subjectMasseter
dc.subjectMasticatory muscle
dc.subjectMatching distribution
dc.subjectPatient-specific
dc.subjectSegmentation
dc.typeArticle
dc.contributor.departmentPREVENTIVE DENTISTRY
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1007/s10278-008-9132-1
dc.description.sourcetitleJournal of Digital Imaging
dc.description.volume22
dc.description.issue5
dc.description.page449-462
dc.description.codenJDIME
dc.identifier.isiut000269880100002
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