{"title":"一种用于改善1.5特斯拉磁共振系统射频磁场的高阻抗表面","authors":"I. M. Masoud, Kenneth Lee Lee, J. Wild, M. Rao","doi":"10.1109/LAPC.2015.7366070","DOIUrl":null,"url":null,"abstract":"This paper focuses on the application of a High Impedance Surface (HIS) to enhance the RF magnetic field (Hi) for a 1.5 Tesla Magnetic Resonance Imaging (MRI) system. The proposed structure is based on a miniaturized HIS using an interdigital capacitance approach. The surface utilizes a HIS between the Radio Frequency (RF) transmit coil and the MRI scanners RF shield which operates at 63.8MHz. The proposed system shows a higher Hi-field inside a homogeneous phantom as compared to a coil above an RF shield. By using this approach, the magnitude of Hi-field was improved by 40%.","PeriodicalId":339610,"journal":{"name":"2015 Loughborough Antennas & Propagation Conference (LAPC)","volume":"352 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"A high impedance surface for improving the radio frequency magnetic field for a 1.5 Tesla Magnetic Resonance system\",\"authors\":\"I. M. Masoud, Kenneth Lee Lee, J. Wild, M. Rao\",\"doi\":\"10.1109/LAPC.2015.7366070\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper focuses on the application of a High Impedance Surface (HIS) to enhance the RF magnetic field (Hi) for a 1.5 Tesla Magnetic Resonance Imaging (MRI) system. The proposed structure is based on a miniaturized HIS using an interdigital capacitance approach. The surface utilizes a HIS between the Radio Frequency (RF) transmit coil and the MRI scanners RF shield which operates at 63.8MHz. The proposed system shows a higher Hi-field inside a homogeneous phantom as compared to a coil above an RF shield. By using this approach, the magnitude of Hi-field was improved by 40%.\",\"PeriodicalId\":339610,\"journal\":{\"name\":\"2015 Loughborough Antennas & Propagation Conference (LAPC)\",\"volume\":\"352 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 Loughborough Antennas & Propagation Conference (LAPC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/LAPC.2015.7366070\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 Loughborough Antennas & Propagation Conference (LAPC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LAPC.2015.7366070","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A high impedance surface for improving the radio frequency magnetic field for a 1.5 Tesla Magnetic Resonance system
This paper focuses on the application of a High Impedance Surface (HIS) to enhance the RF magnetic field (Hi) for a 1.5 Tesla Magnetic Resonance Imaging (MRI) system. The proposed structure is based on a miniaturized HIS using an interdigital capacitance approach. The surface utilizes a HIS between the Radio Frequency (RF) transmit coil and the MRI scanners RF shield which operates at 63.8MHz. The proposed system shows a higher Hi-field inside a homogeneous phantom as compared to a coil above an RF shield. By using this approach, the magnitude of Hi-field was improved by 40%.
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