期刊
NEUROIMAGE
卷 125, 期 -, 页码 479-497出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.neuroimage.2015.10.013
关键词
Segmentation; Multimodal; Striatum; Globus pallidus; Brain; Huntington
资金
- NIH Blueprint for Neuroscience Research [1U54MH091657]
- McDonnell Center for Systems Neuroscience at Washington University
- Wellcome Trust [098369/Z/12/Z]
- Medical Research Council UK (MRC) [MR/K006673/1]
- Delegation Regionale a la Recherche Clinique [PHRC P001106]
- Association Francaise contre les Myopathies
- Etablissement Francais des Greffes
- ERC starter grant [313481]
- Medical Research Council [G0700399, MR/K006673/1] Funding Source: researchfish
- MRC [G0700399, MR/K006673/1] Funding Source: UKRI
- European Research Council (ERC) [313481] Funding Source: European Research Council (ERC)
Accurate segmentation of the subcortical structures is frequently required in neuroimaging studies. Most existing methods use only a T-1-weighted MRI volume to segment all supported structures and usually rely on a database of training data. We propose a new method that can use multiple image modalities simultaneously and a single reference segmentation for initialisation, without the need for a manually labelled training set. The method models intensity profiles in multiple images around the boundaries of the structure after nonlinear registration. It is trained using a set of unlabelled training data, which may be the same images that are to be segmented, and it can automatically infer the location of the physical boundary using user-specified priors. We show that the method produces high-quality segmentations of the striatum, which is clearly visible on T-1-weighted scans, and the globus pallidus, which has poor contrast on such scans. The method compares favourably to existing methods, showing greater overlap with manual segmentations and better consistency. (C) 2015 The Authors. Published by Elsevier Inc.
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