Yinhao Ren;Kecheng Yuan;Guofang Xu;Chunyou Ye;Feng Liu;Bensheng Qiu;Xiang Nan;Jijun Han
{"title":"使用迪克森技术进行基于脂肪-水信号的电特性断层扫描","authors":"Yinhao Ren;Kecheng Yuan;Guofang Xu;Chunyou Ye;Feng Liu;Bensheng Qiu;Xiang Nan;Jijun Han","doi":"10.1109/TIM.2024.3485405","DOIUrl":null,"url":null,"abstract":"This study aimed to improve the accuracy of electrical properties tomography (EPT) by proposing a fat-water quantification-based EPT (FW-EPT) using the Dixon technique and provided a feasible approach for obtaining electrical properties (EPs) from current clinical routing modalities. Nine human liver-mimicking phantoms were built with varying fat-water (FW) content at 64 MHz. The EPs were measured using the open-ended coaxial probe method, and an FW signal was obtained through Dixon scanning. Subsequently, three sets of fit models were established: F-EPs, considering only fat information; W-EPs, considering only water information; and FW-EPs, considering both fat and water information. To assess the accuracy of these models, FW-EPT experiments were conducted on two healthy subjects, and the results were evaluated using literature values as a reference benchmark. Experiments showed that the FW-EPs fitted model offered the best accuracy. Compared with the literature values, the average relative errors for human liver conductivity and relative permittivity at 1.5T magnetic resonance imaging (MRI) were lower than 2.89% and 5.37%, respectively. The scanning time for clinical human magnetic resonance (MR) experiments was approximately 22 s. FW-EPT enabled faster, higher resolution, and more precise imaging of EPs in human liver tissue. The findings of this study offered new insights for clinical EPT.","PeriodicalId":13341,"journal":{"name":"IEEE Transactions on Instrumentation and Measurement","volume":null,"pages":null},"PeriodicalIF":5.6000,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fat-Water Signal-Based Electrical Properties Tomography Using the Dixon Technique\",\"authors\":\"Yinhao Ren;Kecheng Yuan;Guofang Xu;Chunyou Ye;Feng Liu;Bensheng Qiu;Xiang Nan;Jijun Han\",\"doi\":\"10.1109/TIM.2024.3485405\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study aimed to improve the accuracy of electrical properties tomography (EPT) by proposing a fat-water quantification-based EPT (FW-EPT) using the Dixon technique and provided a feasible approach for obtaining electrical properties (EPs) from current clinical routing modalities. Nine human liver-mimicking phantoms were built with varying fat-water (FW) content at 64 MHz. The EPs were measured using the open-ended coaxial probe method, and an FW signal was obtained through Dixon scanning. Subsequently, three sets of fit models were established: F-EPs, considering only fat information; W-EPs, considering only water information; and FW-EPs, considering both fat and water information. To assess the accuracy of these models, FW-EPT experiments were conducted on two healthy subjects, and the results were evaluated using literature values as a reference benchmark. Experiments showed that the FW-EPs fitted model offered the best accuracy. Compared with the literature values, the average relative errors for human liver conductivity and relative permittivity at 1.5T magnetic resonance imaging (MRI) were lower than 2.89% and 5.37%, respectively. The scanning time for clinical human magnetic resonance (MR) experiments was approximately 22 s. FW-EPT enabled faster, higher resolution, and more precise imaging of EPs in human liver tissue. The findings of this study offered new insights for clinical EPT.\",\"PeriodicalId\":13341,\"journal\":{\"name\":\"IEEE Transactions on Instrumentation and Measurement\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.6000,\"publicationDate\":\"2024-10-30\",\"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/10739906/\",\"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/10739906/","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}
Fat-Water Signal-Based Electrical Properties Tomography Using the Dixon Technique
This study aimed to improve the accuracy of electrical properties tomography (EPT) by proposing a fat-water quantification-based EPT (FW-EPT) using the Dixon technique and provided a feasible approach for obtaining electrical properties (EPs) from current clinical routing modalities. Nine human liver-mimicking phantoms were built with varying fat-water (FW) content at 64 MHz. The EPs were measured using the open-ended coaxial probe method, and an FW signal was obtained through Dixon scanning. Subsequently, three sets of fit models were established: F-EPs, considering only fat information; W-EPs, considering only water information; and FW-EPs, considering both fat and water information. To assess the accuracy of these models, FW-EPT experiments were conducted on two healthy subjects, and the results were evaluated using literature values as a reference benchmark. Experiments showed that the FW-EPs fitted model offered the best accuracy. Compared with the literature values, the average relative errors for human liver conductivity and relative permittivity at 1.5T magnetic resonance imaging (MRI) were lower than 2.89% and 5.37%, respectively. The scanning time for clinical human magnetic resonance (MR) experiments was approximately 22 s. FW-EPT enabled faster, higher resolution, and more precise imaging of EPs in human liver tissue. The findings of this study offered new insights for clinical EPT.
期刊介绍:
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.