Groupwise segmentation improves neuroimaging classification accuracy

Yaping Wang, Hongjun Jia, Pew Thian Yap, Bo Cheng, Chong Yaw Wee, Lei Guo, Dinggang Shen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Accurate diagnosis of Alzheimer's disease (AD), especially mild cognitive impairment (MCI), is critical for treatment of the disease. Many algorithms have been proposed to improve classification performance. While most existing methods focus on exploring different feature extraction and selection techniques, in this paper, we show that the pre-processing steps for MRI scans, i.e., registration and segmentation, significantly affect the classification performance. Specifically, we evaluate the classification performance given by a multi-atlas based multi-image segmentation (MABMIS) method, with respect to more conventional segmentation methods. By incorporating tree-based groupwise registration and iterative groupwise segmentation strategies, MABMIS attains more accurate and consistent segmentation results compared with the conventional methods that do not take into account the inherent distribution of images under segmentation. This increased segmentation accuracy will benefit classification by minimizing errors that are propagated to the subsequent analysis steps. Experimental results indicate that MABMIS achieves better performance when compared with the conventional methods in the following classification tasks using the ADNI dataset: AD vs. MCI (accuracy: 71.8%), AD vs. healthy control (HC) (89.1%), progressive MCI vs. HC (84.4%), and progressive MCI vs. stable MCI (70.0%). These results show that pre-processing the images accurately is critical for neuroimaging classification.

Original languageEnglish
Title of host publicationMultimodal Brain Image Analysis - Second International Workshop, MBIA 2012, Held in Conjunction with MICCAI 2012, Proceedings
Pages185-193
Number of pages9
DOIs
Publication statusPublished - 2012
Event2nd International Workshop on Multimodal Brain Image Analysis, MBIA 2012, Held in Conjunction with the 15th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2012 - Nice, France
Duration: 2012 Oct 12012 Oct 5

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7509 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other2nd International Workshop on Multimodal Brain Image Analysis, MBIA 2012, Held in Conjunction with the 15th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2012
CountryFrance
CityNice
Period12/10/112/10/5

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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    Wang, Y., Jia, H., Yap, P. T., Cheng, B., Wee, C. Y., Guo, L., & Shen, D. (2012). Groupwise segmentation improves neuroimaging classification accuracy. In Multimodal Brain Image Analysis - Second International Workshop, MBIA 2012, Held in Conjunction with MICCAI 2012, Proceedings (pp. 185-193). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 7509 LNCS). https://doi.org/10.1007/978-3-642-33530-3_16