{"title":"一种新的用于SQUID胃磁图检测的维纳滤波方法","authors":"Hua Li;Mingyue Zhang","doi":"10.1109/TIM.2025.3541790","DOIUrl":null,"url":null,"abstract":"Superconducting quantum interference device (SQUID) magnetogastrogram (MGG) is a medical functional imaging method with great clinical potential for noninvasive diagnosis of gastric diseases. MGG signal frequency is about 0.05 Hz, and the low-frequency environmental noise interference is serious, can be several times stronger in magnitude than the signals of interest, and may severely impede the extraction of relevant information. Wiener filter is one classic denoising solution for biomagnetic applications. In this article, a new high-pass Wiener filter and signal processing framework for MGG measurement is proposed, which can filter low-frequency noises not only specific artifacts. The filter was successfully applied to MGG signal denoising. Using this general Wiener filter frame, the filter signal-to-noise ratio (SNR) is 11.3 dB better than the classical Wiener filter and it also has 16.7 dB of SNR better than without signal noise separation step. Based on our methods, 36-point array MGG signals were detected successfully and the results were consistent with the main gastric slow wave activity.","PeriodicalId":13341,"journal":{"name":"IEEE Transactions on Instrumentation and Measurement","volume":"74 ","pages":"1-11"},"PeriodicalIF":5.9000,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"One New Designed Wiener Filter Method for SQUID Magnetogastrogram Detection\",\"authors\":\"Hua Li;Mingyue Zhang\",\"doi\":\"10.1109/TIM.2025.3541790\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Superconducting quantum interference device (SQUID) magnetogastrogram (MGG) is a medical functional imaging method with great clinical potential for noninvasive diagnosis of gastric diseases. MGG signal frequency is about 0.05 Hz, and the low-frequency environmental noise interference is serious, can be several times stronger in magnitude than the signals of interest, and may severely impede the extraction of relevant information. Wiener filter is one classic denoising solution for biomagnetic applications. In this article, a new high-pass Wiener filter and signal processing framework for MGG measurement is proposed, which can filter low-frequency noises not only specific artifacts. The filter was successfully applied to MGG signal denoising. Using this general Wiener filter frame, the filter signal-to-noise ratio (SNR) is 11.3 dB better than the classical Wiener filter and it also has 16.7 dB of SNR better than without signal noise separation step. Based on our methods, 36-point array MGG signals were detected successfully and the results were consistent with the main gastric slow wave activity.\",\"PeriodicalId\":13341,\"journal\":{\"name\":\"IEEE Transactions on Instrumentation and Measurement\",\"volume\":\"74 \",\"pages\":\"1-11\"},\"PeriodicalIF\":5.9000,\"publicationDate\":\"2025-02-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Instrumentation and Measurement\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10884810/\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Instrumentation and Measurement","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10884810/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
One New Designed Wiener Filter Method for SQUID Magnetogastrogram Detection
Superconducting quantum interference device (SQUID) magnetogastrogram (MGG) is a medical functional imaging method with great clinical potential for noninvasive diagnosis of gastric diseases. MGG signal frequency is about 0.05 Hz, and the low-frequency environmental noise interference is serious, can be several times stronger in magnitude than the signals of interest, and may severely impede the extraction of relevant information. Wiener filter is one classic denoising solution for biomagnetic applications. In this article, a new high-pass Wiener filter and signal processing framework for MGG measurement is proposed, which can filter low-frequency noises not only specific artifacts. The filter was successfully applied to MGG signal denoising. Using this general Wiener filter frame, the filter signal-to-noise ratio (SNR) is 11.3 dB better than the classical Wiener filter and it also has 16.7 dB of SNR better than without signal noise separation step. Based on our methods, 36-point array MGG signals were detected successfully and the results were consistent with the main gastric slow wave activity.
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Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.
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