A Brain Morphometry Study with Across-Site Harmonization Using a ComBat-Generalized Additive Model in Children and Adolescents.

A Brain Morphometry Study with Across-Site Harmonization Using a ComBat-Generalized Additive Model in Children and Adolescents.
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一项脑形态计量学研究,使用儿童和青少年中的战斗将军加性模型进行跨站点的统一。

DOI:
10.3390/diagnostics13172774
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发表时间:
2023-08-27
期刊:
Diagnostics (Basel, Switzerland)
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大脑的区域解剖结构与特定区域的功能以及基因表达的时空模式及其从胎儿期到老年的功能密切相关。因此,定量脑形态测量常被应用于神经科学研究中,而由于缺乏可供多中心研究使用的正常参考值,控制扫描仪的扫描效应是确保罕见孤儿疾病脑形态测量研究准确性的关键问题。本研究旨在提供儿童和青少年各性别和年龄组的整体和区域脑容量的跨站点正常参考值。我们收集了来自 5 个机构的 846 名年龄 6.0-17.9 岁的神经典型参与者(339 名男性和 507 名女性参与者)的磁共振成像 (MRI) 检查,这些参与者包括健康志愿者或没有神经系统疾病、神经心理疾病或癫痫的神经典型患者。使用 CIVET 2.1.0 进行区域分析。管道提供了区域脑容量,并且使用 ComBat-GAM 协调进行跨站点组合测量。本研究中的整体和局部脑体积和侧向指数的正常参考值有助于评估临床环境中每个个体的脑形态特征以及研究极罕见疾病的脑形态。
Regional anatomical structures of the brain are intimately connected to functions corresponding to specific regions and the temporospatial pattern of genetic expression and their functions from the fetal period to old age. Therefore, quantitative brain morphometry has often been employed in neuroscience investigations, while controlling for the scanner effect of the scanner is a critical issue for ensuring accuracy in brain morphometric studies of rare orphan diseases due to the lack of normal reference values available for multicenter studies. This study aimed to provide across-site normal reference values of global and regional brain volumes for each sex and age group in children and adolescents. We collected magnetic resonance imaging (MRI) examinations of 846 neurotypical participants aged 6.0–17.9 years (339 male and 507 female participants) from 5 institutions comprising healthy volunteers or neurotypical patients without neurological disorders, neuropsychological disorders, or epilepsy. Regional-based analysis using the CIVET 2.1.0. pipeline provided regional brain volumes, and the measurements were across-site combined using ComBat-GAM harmonization. The normal reference values of global and regional brain volumes and lateral indices in our study could be helpful for evaluating the characteristics of the brain morphology of each individual in a clinical setting and investigating the brain morphology of ultra-rare diseases.
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