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Abstract #4510

Localization of Subcortical Structures with the Presence of Lesions in Clinical Brain MRI

Long Xie1,2, Yanhui Ding3, James C. Gee1,4,5, Andreas M. Rauschecker4, and Jeffrey D. Rudie4

1Penn Image Computing and Science Laboratory (PICSL), Department of Radiology, University of Pennsylvania, Philadelphia, PA, United States, 2Bioengineering, University of Pennsylvania, Philadelphia, PA, United States, 3School of Information Science and Engineering, Shandong Normal University, Jinan, People's Republic of China, 4Department of Radiology, University of Pennsylvania, Philadelphia, PA, United States, 5School of Computer Science & Engineering, University of Electronic Science and Technology of China, Chengdu, People's Republic of China

In this study, we proposed a pipeline to locate subcortical structures in patients with deep gray matter lesions using clinical brain MRI images. Due to altered signal intensity profile caused by lesions and high slice thickness (~5mm), segmentation of clinical MRI images provide challenges for state-of-the-art algorithms. Our proposed pipeline generates better subcortical structure segmentations, including better lesion coverage and more reliable segmentations than other widely used algorithms. The proposed pipeline may have help in automating the diagnosis of subcortical lesions, potentially improving current clinical practice.

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