An artificial‐intelligence‐based age‐specific template construction framework for brain structural analysis using magnetic resonance images
Dongdong Gu,Feng Shi,Rui Hua,Ying Wei,Yufei Li,Jiayu Zhu,Weijun Zhang,Han Zhang,Qiang Yang,Peiyu Huang,Yingling Jiang,Bin Bo,Yao Li,Yaoyu Zhang,Minming Zhang,Jinsong Wu,Hongcheng Shi,Siwei Liu,Qiang He,Qiang Zhang,Xu Zhang,Hongjiang Wei,Guocai Liu,Zhong Xue,Dinggang Shen +24 more
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TL;DR: In this paper , an AI-based age-specific template construction (called ASTC) framework was proposed for longitudinal structural brain analysis using T1-weighted MRIs of 646 subjects from 18 to 82 years old collected from four medical centers.
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Abstract: It is an essential task to construct brain templates and analyze their anatomical structures in neurological and cognitive science. Generally, templates constructed from magnetic resonance imaging (MRI) of a group of subjects can provide a standard reference space for analyzing the structural and functional characteristics of the group. With recent development of artificial intelligence (AI) techniques, it is desirable to explore AI registration methods for quantifying age‐specific brain variations and tendencies across different ages. In this article, we present an AI‐based age‐specific template construction (called ASTC) framework for longitudinal structural brain analysis using T1‐weighted MRIs of 646 subjects from 18 to 82 years old collected from four medical centers. Altogether, 13 longitudinal templates were constructed at a 5‐year age interval using ASTC, and tissue segmentation and substructure parcellation were performed for analysis across different age groups. The results indicated consistent changes in brain structures along with aging and demonstrated the capability of ASTC for longitudinal neuroimaging study.
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