Book ChapterDOI
Corpus Callosum 2D Segmentation on Diffusion Tensor Imaging Using Growing Neural Gas Network
Giovana S. Cover,William Garcia Herrera,Mariana P. Bento,Leticia Rittner +3 more
- pp 208-216
TLDR
An automatic CC segmentation approach on Diffusion Tensor imaging (DTI) using Growing Neural Gas (GNG) network, an unsupervised machine learning algorithm, on the fractional anisotropy map is proposed.Abstract:
The Corpus Callosum (CC) segmentation on Magnetic Resonance Images (MRI) is of utmost importance for the study of neurodegenerative diseases, since it is the largest white matter brain structure, interconnecting the two cerebral hemispheres. Operator-independent segmentation methods are desirable, even though such task is complex due to shape and intensity variation among subjects, especially on low resolution images such as Diffusion-MRI. This paper proposes an automatic CC segmentation approach on Diffusion Tensor imaging (DTI). The method uses Growing Neural Gas (GNG) network, an unsupervised machine learning algorithm, on the fractional anisotropy map. The proposed method obtained a Dice coefficient of 0.88 in experiments using DTI of fifty human subjects, while other segmentation approaches obtained Dice results below 0.73. Although the GNG network had five parameters to be set, it requires no user intervention and was the only method that successfully detected and segmented the CC on all experimented dataset.read more
Citations
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Proceedings ArticleDOI
Opencc – an open Benchmark data set for Corpus Callosum Segmentation and Evaluation
TL;DR: The OpenCC dataset can be used for comparison and evaluation of newly developed CC segmentation algorithms and some baseline segmentation results are provided by using two latest deep learning segmentation approaches.
Proceedings ArticleDOI
Can incomplete silver standard labels improve performance of DTI-based volumetric segmentation of the corpus callosum?
TL;DR: In this article , the authors study the possibility of improving automated segmentation of the Corpus Callosum (CC) using silver standard annotations, limited to 5 or 7 central slices, experiments performed throughout this work were done to compare methods of pre-training and fine tuning in an attempt to translate silver standard knowledge to improved performance in 3D CC segmentation.
References
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Proceedings Article
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Journal ArticleDOI
Towards a neuroanatomy of autism: a systematic review and meta-analysis of structural magnetic resonance imaging studies.
Andrew C. Stanfield,Andrew M. McIntosh,Michael D. Spencer,Ruth C. M. Philip,Sonia Gaur,Stephen M. Lawrie +5 more
TL;DR: Autism may result from abnormalities in specific brain regions and a global lack of integration due to brain enlargement, and some regions may show abnormal growth trajectories.
Journal ArticleDOI
DTI tractography based parcellation of white matter: Application to the mid-sagittal morphology of corpus callosum
Hao Huang,Jiangyang Zhang,Hangyi Jiang,Hangyi Jiang,Setsu Wakana,Setsu Wakana,Lidia Poetscher,Lidia Poetscher,Michael I. Miller,Peter C.M. van Zijl,Peter C.M. van Zijl,Argye E. Hillis,Robert Wytik,Susumu Mori,Susumu Mori +14 more
TL;DR: In this paper, diffusion tensor imaging (DTI) and tract tracing technique were applied to incorporate cortical connectivity information to the morphological study of the corpus callosum (CC) at the mid-sagittal level.