Research on the detection of the brain tumor with the
            <scp>ultrawide‐band</scp>
            microwave signal based on the high‐precision
            <scp>symplectic finite‐difference time‐domain</scp>
            electromagnetic algorithm and
            <scp>beam forming</scp>
            imaging algorithm

Gao, Yingjie; Liu, Jian‐Xiao; Ye, Quan-Yi

doi:10.1002/mmce.22463

Cited by 7 publications

(12 citation statements)

References 29 publications

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“…Table I presents the dielectric properties (relative permittivity) of human tissues, tumors, and blood clots at different frequencies. The dielectric properties of different human tissues have been obtained from [35] and the dielectric properties of abnormalities from [25,[30][31][32]. It should be noted that in the literature, one can find different values e.g., for brain tumors.…”

Section: Basic Idea and Principlementioning

confidence: 99%

“…These applications have further been suggested to be applied for monitoring drivers [20] and elderlies [21]. As a new approach, microwave technologies are studied for use in pre-diagnostics of several diseases and acute disorders, such as, detection of stroke [22][23][24], brain tumors [25][26][27], breast cancer [28][29][30], blood clots [31,32].…”

Section: Introductionmentioning

confidence: 99%

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Remote diagnostics and monitoring using microwave technique – improving healthcare in rural areas and in exceptional situations

et al. 2023

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Interests towards wireless portable medical diagnostics and monitoring systems, which could be used outside hospital e.g. during pandemic or catastrophic situations, have increased recently. Additionally, portable monitoring solutions could partially address widely recognized challenges related to healthcare equality in rural areas. Microwave based sensing has recently been recognized as emerging technology for portable medical monitoring and diagnostics devices since they may enable development of safe, reliable, and low-cost solutions for future’s telemedicine. The aim of this paper is to present the basic idea of microwave -based medical monitoring and discuss its possibilities, advantages, and challenges. In particular, we show that microwaves could be exploited in three pre-diagnostics applications: 1) Detection of abnormalities in the brain with a helmet type of monitoring device, 2) Detection of breast cancer with a self-monitoring vest, 3) Detection of blood clots in leg with an antenna band. The technique is based on detecting differences in radio channel responses caused by the abnormalities having different dielectric properties than the surrounding tissues. Our results of realistic simulations and experimental measurements show that even small-sized abnormalities, e.g. tumors, can change channel characteristics in detectable level.

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Section: Basic Idea and Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Remote diagnostics and monitoring using microwave technique – improving healthcare in rural areas and in exceptional situations

et al. 2023

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“…The radiation patch is composed of two exponential patches, as shown in Figure 1A. The inner edges of the patch are exponentially tapered, where the exponential edge of the upper patch is defined by (3).…”

Section: Design Of the Basic Structurementioning

confidence: 99%

“…As defined by Federal Communications Commission (FCC), UWB is a wireless transmission technology with a bandwidth that can exceed the center frequency by 20% which can realize high-speed communication and radar detection at low power from 3.1 to 10.6 GHz. 1 Owing to the large frequency range of signals and strong signal penetration, UWB detection can be applied to many applications, such as the recognition of targets in rescue, 2 medical imaging, 3 and oil-well detection. 4 Taking medical imaging technology as an example, traditional technologies such as CT, MRI, and PET scans are not only expensive but also full of electromagnetic radiation.…”

Section: Introductionmentioning

confidence: 99%

A novel Vivaldi antenna for UWB detection

Wang

Liu

Fan

et al. 2022

Micro & Optical Tech Letters

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This paper presents a modified structure of the Vivaldi antenna based on an FR4 dielectric substrate of 0.8 mm thickness and 110 mm × 96 mm dimensions for ultra-wideband (UWB) detection systems. The modified Vivaldi antenna has two major novelties. (1) Bottle-shaped slots are etched on both sides of the classic Vivaldi antenna to extend the surface current path length and concentrate electromagnetic energy. ( 2) Rectangular metal strips are implemented in front of the exponential slot to guide the UWB radiation waveform in the desired direction. The modified Vivaldi antenna is evaluated using the CST 2020 software and measured using the vector network analyzer ranging from 3 to 8 GHz. The obtained results show that a maximum peak gain of nearly 9 dBi at 4 GHz can be achieved, the radiation efficiency is improved to 80%, the main lobe level is increased, and the side lobe level is decreased. To further demonstrate the performance of the proposed Vivaldi antenna, a UWB imaging experiment is designed. The imaging results show that the imaging system using the proposed antennas can obtain images with good resolution, which indicates that the antenna has good radiation characteristics and can be used for UWB detection applications.

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“…An MBI system using six ultrawideband (UWB) antenna array was presented in 23 . In the MBI system, a semi-circular head model was utilized by simulation technique to detect brain tumor.…”

Section: Introductionmentioning

confidence: 99%

Microwave brain imaging system to detect brain tumor using metamaterial loaded stacked antenna array

Hossain

Islam

Beng

et al. 2022

Sci Rep

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In this paper, proposes a microwave brain imaging system to detect brain tumors using a metamaterial (MTM) loaded three-dimensional (3D) stacked wideband antenna array. The antenna is comprised of metamaterial-loaded with three substrate layers, including two air gaps. One 1 × 4 MTM array element is used in the top layer and middle layer, and one 3 × 2 MTM array element is used in the bottom layer. The MTM array elements in layers are utilized to enhance the performance concerning antenna’s efficiency, bandwidth, realized gain, radiation directionality in free space and near the head model. The antenna is fabricated on cost-effective Rogers RT5880 and RO4350B substrate, and the optimized dimension of the antenna is 50 × 40 × 8.66 mm3. The measured results show that the antenna has a fractional bandwidth of 79.20% (1.37–3.16 GHz), 93% radiation efficiency, 98% high fidelity factor, 6.67 dBi gain, and adequate field penetration in the head tissue with a maximum of 0.0018 W/kg specific absorption rate. In addition, a 3D realistic tissue-mimicking head phantom is fabricated and measured to verify the performance of the antenna. Later, a nine-antenna array-based microwave brain imaging (MBI) system is implemented and investigated by using phantom model. After that, the scattering parameters are collected, analyzed, and then processed by the Iteratively Corrected delay-multiply-and-sum algorithm to detect and reconstruct the brain tumor images. The imaging results demonstrated that the implemented MBI system can successfully detect the target benign and malignant tumors with their locations inside the brain.

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Research on the detection of the brain tumor with the ultrawide‐band microwave signal based on the high‐precision symplectic finite‐difference time‐domain electromagnetic algorithm and beam forming imaging algorithm

Cited by 7 publications

References 29 publications

Remote diagnostics and monitoring using microwave technique – improving healthcare in rural areas and in exceptional situations

Remote diagnostics and monitoring using microwave technique – improving healthcare in rural areas and in exceptional situations

A novel Vivaldi antenna for UWB detection

Microwave brain imaging system to detect brain tumor using metamaterial loaded stacked antenna array

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