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Abstract #3323

An Atlas Pre-selection Method for Multi-atlas Based Brain Segmentation

Hengtong Li1, Heather T Ma1, Jingbo Ma1, Chenfei Ye1, and Shuai Mao1

1Department of Electronic and Information Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, China, People's Republic of

This study proposed 4L and LV-based methods to improve the brain segmentation accuracy and eddiciency of multi-atlas brain segmentation. The atlas database contains T1 images of brain from 77 subjects. These two methods were adopted to calculate the Dice between the target image and each atlas. We compared the proposed methods with MI-based method and randomly selected method for geriatric, adult and pediatric populations. The segmentation accuracy was evaluated by Dice and the results show that the accuracy of 4L and LV-based methods has great improvement. In addition, the proposed pre-selection is more efficient.

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