Predictive modeling of neuroanatomic structures for brain atrophy detection

Xintao Hu; Lei Guo; Jingxin Nie; Kaiming Li; Tianming Liu

doi:10.1117/12.843901

9 March 2010 Predictive modeling of neuroanatomic structures for brain atrophy detection

Xintao Hu, Lei Guo, Jingxin Nie, Kaiming Li, Tianming Liu

Author Affiliations +

Proceedings Volume 7624, Medical Imaging 2010: Computer-Aided Diagnosis; 76241K (2010) https://doi.org/10.1117/12.843901
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

In this paper, we present an approach of predictive modeling of neuroanatomic structures for the detection of brain atrophy based on cross-sectional MRI image. The underlying premise of applying predictive modeling for atrophy detection is that brain atrophy is defined as significant deviation of part of the anatomy from what the remaining normal anatomy predicts for that part. The steps of predictive modeling are as follows. The central cortical surface under consideration is reconstructed from brain tissue map and Regions of Interests (ROI) on it are predicted from other reliable anatomies. The vertex pair-wise distance between the predicted vertex and the true one within the abnormal region is expected to be larger than that of the vertex in normal brain region. Change of white matter/gray matter ratio within a spherical region is used to identify the direction of vertex displacement. In this way, the severity of brain atrophy can be defined quantitatively by the displacements of those vertices. The proposed predictive modeling method has been evaluated by using both simulated atrophies and MRI images of Alzheimer's disease.

Citation Download Citation

Xintao Hu, Lei Guo, Jingxin Nie, Kaiming Li, and Tianming Liu "Predictive modeling of neuroanatomic structures for brain atrophy detection", Proc. SPIE 7624, Medical Imaging 2010: Computer-Aided Diagnosis, 76241K (9 March 2010); https://doi.org/10.1117/12.843901

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