Identification of individuals with MCI via multimodality connectivity networks.

Chong Yaw Wee, Pew Thian Yap, Daoqiang Zhang, Kevin Denny, Lihong Wang, Dinggang Shen

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Alzheimer's disease (AD), is difficult to diagnose due to the subtlety of cognitive impairment. Recent emergence of reliable network characterization techniques based on diffusion tensor imaging (DTI) and resting-state functional magnetic resonance imaging (rs-fMRI) has made the understanding of neurological disorders at a whole-brain connectivity level possible, providing new avenues for brain classification. Taking a multi-kernel SVM, we attempt to integrate these two imaging modalities for improving classification performance. Our results indicate that the multimodality classification approach performs better than the single modality approach, with statistically significant improvement in accuracy. It was also found that the prefrontal cortex, orbitofrontal cortex, temporal pole, anterior and posterior cingulate gyrus, precuneus, amygdala, thalamus, parahippocampal gyrus and insula regions provided the most discriminant features for classification, in line with the results reported in previous studies. The multimodality classification approach allows more accurate early detection of brain abnormalities with larger sensitivity, and is important for treatment management of potential AD patients.

Original languageEnglish
Title of host publicationMedical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
Pages277-284
Number of pages8
Volume14
EditionPt 2
Publication statusPublished - 2011 Dec 1

ASJC Scopus subject areas

  • Medicine(all)

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  • Cite this

    Wee, C. Y., Yap, P. T., Zhang, D., Denny, K., Wang, L., & Shen, D. (2011). Identification of individuals with MCI via multimodality connectivity networks. In Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention (Pt 2 ed., Vol. 14, pp. 277-284)