IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology最新文献_第10页

IEEE Journal of Electromagnetics, RF, and Microwaves in Medicine and Biology About this Journal IEEE Journal of Electromagnetics, RF, and Microwaves in Medicine and Biology 关于本期刊

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-29 DOI: 10.1109/JERM.2024.3362215

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IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology Publication Information IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology 出版信息

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-29 DOI: 10.1109/JERM.2024.3362211

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Field-Circuit Combination Method for Solving the Detuning Problem of Magnetic Resonance Human Body Communication 解决磁共振人体通信失谐问题的场-电路组合方法

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-27 DOI: 10.1109/JERM.2024.3367247

Lixuan Huang;Ziliang Wei;Bingheng Chen;Sio Hang Pun;Mang I Vai;Yueming Gao

{"title":"Field-Circuit Combination Method for Solving the Detuning Problem of Magnetic Resonance Human Body Communication","authors":"Lixuan Huang;Ziliang Wei;Bingheng Chen;Sio Hang Pun;Mang I Vai;Yueming Gao","doi":"10.1109/JERM.2024.3367247","DOIUrl":"https://doi.org/10.1109/JERM.2024.3367247","url":null,"abstract":"The technological challenge to realize wearable medical devices is to ensure low power consumption and reliable transmission of communication. Magnetic resonance human body communication (MR HBC) provides ideas to improve the transmission effect. Although the coil's resonance properties have been proposed for MR HBC, the modeling and impedance matching for this method are still in the exploratory stage. However, different human impedances affect the coil resonance frequency to varying extents, leading to individual variability in the degree of magnetic coupling. This paper analyzes the influence of human tissues on the coil through finite element method (FEM) simulation modeling. This effect can be eliminated by employing a dual tunable capacitor matching method based on the field-circuit combination. By dynamically adjusting the values of the dual tunable capacitors in real-time, the human body and the coil can be tuned to a resonant state, effectively improving the degree of magnetic coupling. The results reveal that the proposed method enhances the communication gain by 38.91–42.02 dB at the preset frequency for different human tissues. In vivo experiments verify that the method eliminates the effect of different human impedances on the coil, which is of great significance for further improving the performance of MR HBC.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 2","pages":"94-101"},"PeriodicalIF":3.2,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141084921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Continuous Detection of Fluid Leaks Into the Body by Means of Partially Dissolvable Antennas 利用可部分溶解的天线连续探测漏入人体的液体

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-19 DOI: 10.1109/JERM.2024.3363509

Federica Naccarata;Marco Di Cristofano;Gaetano Marrocco

{"title":"Continuous Detection of Fluid Leaks Into the Body by Means of Partially Dissolvable Antennas","authors":"Federica Naccarata;Marco Di Cristofano;Gaetano Marrocco","doi":"10.1109/JERM.2024.3363509","DOIUrl":"https://doi.org/10.1109/JERM.2024.3363509","url":null,"abstract":"Internal fluid leaks in the human body can be caused by underlying medical disorders. Leakage may also be relevant to implanted stent grafts for the treatment of abdominal aneurysms. Indeed, blood may leak through the stent into the aneurysm sac with the risk of rupture due to increased internal pressure. As standard screenings cannot be performed frequently enough, this paper proposes wireless monitoring of fluid leaks into human body regions exploiting an implanted antenna partially coated by an engineered material and an auto-tuning IC in the UHF RFID band. The presence of fluid modifies the antenna impedance in a controlled way by the hydrolysis of the coating. An indication of this change can be obtained through radiofrequency interrogation from an external reader even when the antenna is implanted at 6 cm. Simulations and tests with a mock-up demonstrated the ability to distinguish the degradation of the bioresorbable coating. The sensor is responsive to up to 3.5 mm\u0000<inline-formula><tex-math>$^{3}$</tex-math></inline-formula>\u0000 of dissolved coating, with a sensitivity of more 10 units\u0000<inline-formula><tex-math>$/$</tex-math></inline-formula>\u0000mm\u0000<inline-formula><tex-math>$^{3}$</tex-math></inline-formula>\u0000. Provided that the size of the coating has been properly engineered, the response of the sensor is robust w.r.t. the unpredictable interaction with the fluid.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 1","pages":"15-25"},"PeriodicalIF":3.2,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140000508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Speed Thermal Imaging Can Resolve Short RF Pulse Effects in Tissue Models 高速热成像技术可分辨组织模型中的短射频脉冲效应

IF 3

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-19 DOI: 10.1109/JERM.2024.3363906

Daniel W. van der Weide;Dustin Kendig;Mo Shakouri

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Microwave Vertebrae Strength Probe Development: Robust and Fast Phase Unwrapping Technique 微波椎体强度探头开发：稳健快速的相位解包技术

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-19 DOI: 10.1109/JERM.2024.3363148

Paul M. Meaney;Viktor Mattsson;Robin Augustine;Helena Brisby

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Improved Multiplicative Regularization for CSI-EPT CSI-EPT 的改进乘法正则化

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-16 DOI: 10.1109/JERM.2024.3363428

Florens Helfferich;Peter M. van den Berg;Rob F. Remis

{"title":"Improved Multiplicative Regularization for CSI-EPT","authors":"Florens Helfferich;Peter M. van den Berg;Rob F. Remis","doi":"10.1109/JERM.2024.3363428","DOIUrl":"https://doi.org/10.1109/JERM.2024.3363428","url":null,"abstract":"We present an improved multiplicative Contrast Source Inversion (CSI) approach for Electrical Properties Tomography (EPT). In EPT, the conductivity and permittivity profiles of a body part are reconstructed based on a known circularly polarized part of the magnetic field (the \u0000<inline-formula><tex-math>$B_{1}^+$</tex-math></inline-formula>\u0000-field) that has its support inside the body part of interest. The CSI method attempts to reconstruct these profiles in an iterative and alternating manner by first fixing the contrast and updating the contrast source (product of tissue contrast and electric field) and subsequently fixing the contrast source and updating the contrast. In this paper, regularization is included in a multiplicative way similar to the standard multiplicative CSI-EPT method. However, the regularized objective function is different and an update for the contrast is obtained through one-step Jacobi filtering of a least-squares reconstruction that is based on the updated contrast source. Two-dimensional numerical experiments for conductivity and permittivity tissue profiles of a female body model show that, for data with various noise levels, the proposed regularization approach generally provides improved tissue reconstructions compared with standard multiplicative CSI-EPT.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 1","pages":"84-89"},"PeriodicalIF":3.2,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140000516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thyroid Microwave Ablation Study Based on Fiber Bragg Gratings Thermal Mapping 基于光纤布拉格光栅热成像的甲状腺微波消融研究

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-02-08 DOI: 10.1109/JERM.2024.3358991

Elena De Vita;Francesca De Tommasi;Carlo Altomare;Daniela Lo Presti;Giuseppina Pacella;Agostino Iadicicco;Massimiliano Carassiti;Rosario Francesco Grasso;Carlo Massaroni;Stefania Campopiano;Emiliano Schena

{"title":"Thyroid Microwave Ablation Study Based on Fiber Bragg Gratings Thermal Mapping","authors":"Elena De Vita;Francesca De Tommasi;Carlo Altomare;Daniela Lo Presti;Giuseppina Pacella;Agostino Iadicicco;Massimiliano Carassiti;Rosario Francesco Grasso;Carlo Massaroni;Stefania Campopiano;Emiliano Schena","doi":"10.1109/JERM.2024.3358991","DOIUrl":"https://doi.org/10.1109/JERM.2024.3358991","url":null,"abstract":"Thyroid nodules represent a widespread health concern and surgery is often adopted even if the incidence of frequent post-operative complications is not negligible. In recent years, this framework has fostered the growing spread of thermal ablation treatments, in particular microwave ablation (MWA). To date, despite its relevance, state-of-the-art regarding temperature monitoring in thyroid tissue during MWA is lacking. In this paper, the effects of MWA in thyroid by monitoring temperatures have been explored. By using several fiber Bragg gratings (FBGs) temperature sensors, the heat maps in the proximity of the MW antenna have been reconstructed for two different power values set at generator. An increase up to about 4.5 cm\u00003\u0000 in ablation volume and up to 24 °C in maximum temperature variation as power rises from 20 W to 30 W has been observed. In addition, the dependency of the temperature evolution on the involved power has been investigated, observing that, with increasing power, some FBGs recorded a ΔT slope increase until the maximum values, resulting in shorter ablation times, and others recorded a plateau phase until the end of the MWA treatment. Such a propensity could be relevant to adjust the clinical settings according to the desired treatment outcome.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 1","pages":"26-35"},"PeriodicalIF":3.2,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10429761","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140000597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Coil Rectenna Array Design to Harvest All H-Field Components for Lateral Misalignment Tolerant Wireless Powering of Bio-Medical Implant Devices 线圈整流天线阵列设计可收集所有 H 场成分，实现生物医学植入设备的侧向错位容错无线供电

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-01-22 DOI: 10.1109/JERM.2024.3351751

Vivek Kumar Srivastava;Ashwani Sharma

{"title":"A Coil Rectenna Array Design to Harvest All H-Field Components for Lateral Misalignment Tolerant Wireless Powering of Bio-Medical Implant Devices","authors":"Vivek Kumar Srivastava;Ashwani Sharma","doi":"10.1109/JERM.2024.3351751","DOIUrl":"https://doi.org/10.1109/JERM.2024.3351751","url":null,"abstract":"This paper presents a coil rectenna array design to address the lateral misalignment problem in near-field wireless powering of biomedical implants and wearable devices. For this purpose, the proposed design comprises three non-identical orthogonal coil antennas optimized to harvest three orthogonal H-field components efficiently. The rectified energy generated by these antenna units is utilized to supply power to the load by combining the individual rectified output voltages. Out of the two distinct combining techniques, DC and AC combining, DC combining proved advantageous in effectively harnessing the lateral field components. The design parameters of the orthogonal coil rectennas are optimized to enhance the lateral misalignment tolerance area. To realize the proposed rectenna array, a multi-layer PCB technology is employed, resulting in a compact, robust, and cost-effective solution for wireless powering of biomedical implanted and wearable devices. Experimental validation of the analytical results demonstrates that the proposed design has the potential to significantly mitigate the lateral misalignment problem in a 2D plane, achieving a uniformity percentage of \u0000<inline-formula><tex-math>$boldsymbol{38.18}$</tex-math></inline-formula>\u0000% for a misalignment tolerance range of \u0000<inline-formula><tex-math>$60times 60$</tex-math></inline-formula>\u0000 mm\u0000<inline-formula><tex-math>$^{2}$</tex-math></inline-formula>\u0000.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 1","pages":"59-67"},"PeriodicalIF":3.2,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140000594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Low-Cost Production of Tissue-Mimicking Skin Phantoms Up to 40 GHz 低成本制作高达 40 千兆赫的组织仿真皮肤模型

IF 3.2

IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology Pub Date : 2024-01-18 DOI: 10.1109/JERM.2024.3349851

Simona Di Meo;Giulia Matrone;Giovanni Magenes;Marco Pasian

{"title":"On the Low-Cost Production of Tissue-Mimicking Skin Phantoms Up to 40 GHz","authors":"Simona Di Meo;Giulia Matrone;Giovanni Magenes;Marco Pasian","doi":"10.1109/JERM.2024.3349851","DOIUrl":"https://doi.org/10.1109/JERM.2024.3349851","url":null,"abstract":"<italic>Objectives:\u0000 In this paper, a simple methodology for making skin phantoms is presented. In addition, the first millimeter (mm)-wave images in scenarios including the skin phantoms are shown. \u0000<italic>Technology or Method:\u0000 Two mixtures based on the use of simple and inexpensive materials are produced and dielectrically characterized in the [0.5--40] GHz frequency range. Cole-Cole parameters are derived by the least-squares method. An inexpensive polystyrene mold to obtain morphologically compatible skin thicknesses is presented. Finally, these phantoms are used for experimental mm-wave imaging tests in two scenarios, with targets with different size and reflectivity in air and in an oil-based phantom. \u0000<italic>Results:\u0000 The dielectric characteristics of the produced skin phantoms are compared with those of human skin, showing excellent agreement over the entire spectrum. Realistic and uniform thicknesses from 1 to 2.5 mm were obtained. The experimental images show the possibility of detecting targets with different reflectivity below the skin at mm- waves. \u0000<italic>Conclusions:\u0000 two phantoms based on safe and low-cost materials emulating dielectric characteristics (up to 40 GHz) and morphological characteristics of the skin were proposed. One of these phantoms has been used for a number of mm-wave imaging system tests in different scenarios, and the potential of mm-waves to detect non-superficial targets even in the presence of skin is demonstrated. \u0000<italic>Clinical or Biological Impact:\u0000 the results presented in this paper provide a replicable methodology for skin phantom realization and show the potential feasibility of mm-wave imaging for early detection of breast cancer.","PeriodicalId":29955,"journal":{"name":"IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology","volume":"8 1","pages":"51-58"},"PeriodicalIF":3.2,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140000600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0