Brezulianu A, Fira Monica, Gazzi E, Sorodoc L
Gh. Asachi Technical University of Iaşi, School of Electronics, Telecommunications and Information Technology Department.
Rev Med Chir Soc Med Nat Iasi. 2009 Jan-Mar;113(1):120-4.
Many recent studies showed that EGG signal can be used to diagnose and monitor patients with gastric motility disorders.
This paper presents the way to record and process the EGG signal, and the results of study on a sample of 10 patients. These patients are initially evaluated by upper endoscopy were are normal without gastric motility dysfunction or some gastric lesions. The EGG signals are obtained with the surface electrodes placed along the projection of the stomach axis on the abdomen, amplified with an electrogastrogram amplifier module and analyzed on a personal computer. The used signal analysis method is based on spectral analysis of EGG signals.
This method showed a normal gastric activity for seven patients of the sample and a gastric dysryhthmia for three of them.
The computerized spectral analysis of electrogastrography signals proves to be a non-invasive, high sensitive, reproducible and cost-effective method for the diagnosis of gastric dysrhythmias and normal gastric electrical rhythm even in sub clinical patients.
许多近期研究表明,胃电图(EGG)信号可用于诊断和监测胃动力障碍患者。
本文介绍了记录和处理EGG信号的方法,以及对10例患者样本的研究结果。这些患者最初经上消化道内镜检查评估为正常,无胃动力功能障碍或某些胃部病变。通过沿胃轴在腹部的投影放置表面电极获取EGG信号,用胃电图放大器模块进行放大,并在个人计算机上进行分析。所采用的信号分析方法基于EGG信号的频谱分析。
该方法显示样本中有7例患者胃活动正常,3例患者出现胃节律紊乱。
胃电图信号的计算机频谱分析被证明是一种用于诊断胃节律紊乱和正常胃电节律的非侵入性、高灵敏度、可重复且经济高效的方法,即使对于亚临床患者也是如此。