在患有先天性心脏病的新生儿中,功能性脑网络的非典型发展
Jung-Hoon Kim1, Josepheen De Asis-Cruz1, Nickie N Andescavage1
1Developing Brain Institute, Children's National Hospital, 111 Michigan Ave N.W., Washington D.C. 20010.
概括
先天性心脏病 (CHD) 破坏新生儿的大脑网络,特别是感觉运动和边缘系统. 休息状态fMRI显示这些网络在手术后正常化,为神经发育风险提供了潜在的早期生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 医疗成像医学成像
背景情况:
- 遗传性心脏病 (CHD) 影响1%的出生,导致神经发育障碍,尽管手术的进展.
- 现有的静止状态fMRI (rs-fMRI) 在心脏病中的研究使用有限的预定义的大脑分片,阻碍了空间网络变化的检测.
- 早期识别大脑网络障碍对于理解和缓解心血管疾病中神经发育缺陷至关重要.
研究的目的:
- 用数据驱动方法研究心脏病新生儿的异常大脑网络发育.
- 从健康新生儿的独立数据集中建立新生儿大脑网络的规范集.
- 确定早期的rs-fMRI生物标志物用于CHD中神经发育风险.
主要方法:
- 分析了448名新生儿的rs-fMRI数据 (219名女性,229名男性).
- 采用数据驱动的方法来识别新生儿的大脑网络.
- 将复杂心血管疾病的新生儿的大脑网络组织与健康新生儿的规范数据集进行比较.
主要成果:
- 在手术前,患有复杂心血管疾病的新生儿在感觉运动和边缘网络中表现出异常组织.
- 这些网络最初被分为左半球和右半球子网络.
- 在心血管外科手术后,这些网络凝聚成一种独特的对称模式,类似于健康的新生儿.
结论:
- rs-fMRI可以检测到新生儿患有心脏病的微妙,早期的功能性大脑障碍.
- 慢性心血管疾病的非典型网络组织使术后正常化,这表明了潜在的干预窗口.
- 这项研究为开发基于rs-fMRI的CHD神经发育风险生物标志物提供了基础.
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