Tracking instantaneous pressure-to-flow dynamics of cerebral autoregulation induced by CO2 reactivity
文献类型：会议论文
| 作者 | Jia Liu; Hesam Koochakpour; Ronney B. Panerai; Emmanuel Katsogridakis; Zuoen Wang; David M. Simpson |
| 出版日期 | 2013 |
| 会议名称 | 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013 |
| 会议地点 | Osaka, Japan |
| 英文摘要 | In this work, we proposed a novel method to investigate the underlying rapid pressure-to-flow dynamics induced by changes of arterial CO2. Autoregulation was modeled as a multivariate system. The instantaneous effect of CO2 to cerebral blood flow velocity (CBFV) was removed adaptively by the recursive least square (RLS) method from CBFV. The residue CBFV and arterial blood pressure (ABP) were then filtered by a Gaussian-modulated sinusoidal pulse filter, in order to optimize the time and frequency resolution when estimating the instantaneous phase difference between the signals using Hilbert transform (HT). The results indicate that the effect of CO2 on dynamic autoregulation is slower than on CBFV. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/5272]  |
| 专题 | 深圳先进技术研究院_其他 |
| 作者单位 | 2013 |
| 推荐引用方式 GB/T 7714 | Jia Liu,Hesam Koochakpour,Ronney B. Panerai,et al. Tracking instantaneous pressure-to-flow dynamics of cerebral autoregulation induced by CO2 reactivity[C]. 见:2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013. Osaka, Japan. |
入库方式： OAI收割
来源：深圳先进技术研究院
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