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Relationship between intestinal motility indexes from internal and surface recordings of electroenterogram

机译：电器读数内外录制肠道运动指标的关系

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摘要

Electroenterogram is the myoelectric signal of the smooth muscle of the small intestine. This biosignal traduces; bowel motility. However, an invasive method is necessary for placing electrodes on small bowel serosa. The aim of this paper is to relate surface recording spectral parameters of electroenterogram to intestinal motility Indexes from internal electoenterogram recordings. Bipolar electrodes where placed at different points along the small intestine serosa of two Beagle dogs in order to acquire internal myoelectric signals. Likewise two monopolar contact electrodes were situated on abdominal surface for external recording. Internal and surface signals were amplified and acquired simultaneously in fast state. Internal signals were parameterised in order to obtain intestinal motility indexes. In the same way surface recording was quantified to calculate several spectral parameters. Correlation coefficient functions are calculated and considered as results. Every spectral surface parameter reaches a high correlation with intestinal motility index of each internal recording point. Energy above 2 Hz from the external signal provides highest correlation (around 0.7). Small bowel contractile activity progression referred from abdominal surface recording point is detected. Best correlation is achieved when adjusting time lags. The energy over 2 Hz of surface recorded signal can be used to represent intestinal motility.
机译：Electrenterogram是小肠平滑肌的肌电信号。这种生物可爱交易;肠蠕动。然而，侵入方法对于在小肠浆膜上放置电极是必要的。本文的目的是将电器谱的表面记录光谱参数与内部ElectoEntogram记录的肠道运动指标相关。双极电极，沿着两只小猎犬犬的小肠血清血清置于不同点，以获取内部磁电信号。同样，两个单极接触电极位于腹表面上进行外部录制。在快速状态下同时放大内部和表面信号。将内部信号进行参数化，以获得肠道运动索引。以相同的方式量化表面记录以计算几个光谱参数。相关系数函数被计算并视为结果。每个光谱表面参数与每个内部记录点的肠道运动指数达到高相关。来自外部信号的2 Hz高于2 Hz的能量提供最高的相关性（约0.7）。检测到腹表面记录点提到的小肠收缩活动进展。调整时间滞后时，可以实现最佳相关性。表面记录信号超过2 Hz的能量可用于表示肠蠕动。

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