Simulation of Preterm Neonatal Brain Metabolism During Functional Neuronal Activation Using a Computational Model.

Simulation of Preterm Neonatal Brain Metabolism During Functional Neuronal Activation Using a Computational Model.
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DOI:
10.1007/978-1-4939-3023-4_14
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发表时间:
2016
影响因子:
--
通讯作者:
Tachtsidis I
Tachtsidis I
中科院分区:
医学4区
文献类型:
--
作者:
Hapuarachchi T;Scholkmann F;Caldwell M;Hagmann C;Kleiser S;Metz AJ;Pastewski M;Wolf M;Tachtsidis I

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我们提出了一个早产儿大脑代谢的计算模型。该模型能够模拟功能激活过程中的血流动力学和代谢变化,并模拟功能近红外光谱(FNIRS)数据。作为模型有效性的初步测试,我们模拟了从已发表的研究早产儿功能活动中获得的数据。此外,我们还模拟了最近从早产儿视觉激活过程中收集的数据。该模型能够很好地根据这些观察结果来预测血流动力学和代谢变化。特别是,我们发现脑血流和血压的变化可能解释了早产儿所报告的刺激诱发的血流动力学变化的幅度和标志的可变性。
We present a computational model of metabolism in the preterm neonatal brain. The model has the capacity to mimic haemodynamic and metabolic changes during functional activation and simulate functional near-infrared spectroscopy (fNIRS) data. As an initial test of the model’s efficacy, we simulate data obtained from published studies investigating functional activity in preterm neonates. In addition we simulated recently collected data from preterm neonates during visual activation. The model is well able to predict the haemodynamic and metabolic changes from these observations. In particular, we found that changes in cerebral blood flow and blood pressure may account for the observed variability of the magnitude and sign of stimulus-evoked haemodynamic changes reported in preterm infants.
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