Theoretical presentation of permeability of biological tissues

Chandra, Ch. Rajani; Bharani, P.S.N.; Kumar, Yashwant; Babu, N. Dor

doi:10.1109/incemic.2015.8055887

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…The tumor dielectric characteristics were extracted from [13]. A relative permeability of one was adopted to all materials, according to [14]. Experimental tests were performed using a breast phantom which employs materials with dielectric constants similar to real breast tissues [15]: Skin was simulated with a sorbitol layer (Fig.…”

Section: Front-endmentioning

confidence: 99%

Low-Cost Microwave Imaging Portable Device for Breast Cancer Diagnosis

Aragao

Carvalho

Sanches

et al. 2021

Preprint

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This paper presents a Microwave Imaging apparatus for breast cancer detection, aiming at early diagnosis, an effective way of reducing mortality rates. In 2020, breast cancer has surpassed lung cancer cases worldwide, with more impact in low-income countries, which motivates seeking a non-invasive and affordable screening equipment. Focusing on low-cost and portability, a US$150.00 embedded hardware transceiver plus antennas platform has been picked out, together with the development of a dry-coupling silicone rubber bra hold by a handheld device. Initially, a losses study to analyze the hardware ability to detect malignant tumors depth in the breast was conducted. Next, simulations and tests employing the platform along with a breast phantom were carried out. This phantom mimics the dielectric breast tissue properties while a confocal algorithm was applied to backscattered signals to generate reconstructed images. Results established a correspondence between simulated and experimental data, SCR and SMR above 7.0 dB and 23.0 dB, respectively, in the resulting images and tumor location precision below 0.3 cm. Based on that, the low-cost portable proposed system results showed its ability as an adjunct early breast cancer diagnosis tool.

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Section: Front-endmentioning

confidence: 99%

Low-Cost Microwave Imaging Portable Device for Breast Cancer Diagnosis

Aragao

Carvalho

Sanches

et al. 2021

Preprint

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Low-cost portable system prototype for breast cancer detection using UWB signals

Aragao¹,

Sanches²,

Carvalho³

et al. 2020

2020 13th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI)

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Skin sarcoma stage detection using antenna resonant scale

Silue,

Labidi,

Choubani

2024

JAE

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In this paper, a small antenna is proposed to diagnose skin sarcoma at an embryonic stage. The antenna has an area of 30.54 × 15.27 mm2 and resonates at 1429 MHz with a reflection coefficient of −17.64 dB. The structure consists of a 35 μm copper sheet etched on a 1.6 mm FR-4 substrate. The diagnosis is based on the resonance frequency shift, and the SAR (Specific Absorption Rate) variation when the antenna is positioned on malignant tissue. For the simulations, a three-layer body phantom (skin, fat, muscle), and a half-sphere tumor phantom were considered. Simulations of the antenna performances showed that for a tumor of 100 μm, the resonant frequency, and the SAR decrease by 2 MHz, and 1.09 mW/Kg, respectively. In addition to sarcoma detection, the antenna’s 3.6 dBi gain allows for 124.47 m biomedical communication links in a complex environment.

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Theoretical presentation of permeability of biological tissues

Cited by 3 publications

References 4 publications

Low-Cost Microwave Imaging Portable Device for Breast Cancer Diagnosis

Low-Cost Microwave Imaging Portable Device for Breast Cancer Diagnosis

Low-cost portable system prototype for breast cancer detection using UWB signals

Skin sarcoma stage detection using antenna resonant scale

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