Independent Component Analysis of Electrogastrogram Data
Masashi Ohata, Takahiro Matsuomoto, Akio Shigematsu, Kiyotoshi Matsuoka · 2003
This paper presents an application of independent component analysis to electrogastrogram (EGG), which is a gastric myoelectrical activity measured by several electrodes attached on the abdomen. The purpose is to remove the interfering signals other than the gastric activity. Our analysis is done under the assumption that electrical activities of the organs near the electrodes are statistically mutually independent of each other and the EGG data is a convolutive mixture of them. The result shows that the proposed method is able to clearly extract the component originated from the the gastric activity.