Compound Radar Approach for Breast Imaging

Byrne, Dallan; Sarafianou, Mantalena; Craddock, Ian J

doi:10.1109/tbme.2016.2536703

Cited by 65 publications

(40 citation statements)

References 37 publications

(64 reference statements)

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“…The physical basics of THz based breast cancer detection work as finding the difference between the normal tissue and the malignant tissue by the variation in the dielectric properties of the normal and malignant tissue. The dielectric properties of the skin can be significantly higher than the internal breast tissues generating unwanted reflections and multipath effects [6]. These effects analyzed and the malignant tissue identified with help of the impulse response of the antennas used in this proposed experiment.…”

Section: Methodsmentioning

confidence: 98%

“…A study to evaluate a phyllodes tumor of the breast with magnetic resonance imaging (MRI) and magnetic resonance spectroscopy along with a detailed case study discussed in [4]. Breast cancer detection using the microwave radar technique discussed in [5][6][7][8]. A smart antenna array-based microwave imaging system for brain cancer detection focuses on tumor position discussed in [9].…”

Section: Introductionmentioning

confidence: 99%

“…Some state -of-the-art microwave breast cancer detection systems discussed in [6,[25][26][27][28][29][30]. A biomedical microwave tomography system with 3D-imaging capabilities and an accurate recovery of 3D dielectric property distributions for breast-like phantoms with tumor inclusions utilizing both the in-plane and new cross-plane data in [25].…”

Section: Introductionmentioning

confidence: 99%

“…A biomedical microwave tomography system with 3D-imaging capabilities and an accurate recovery of 3D dielectric property distributions for breast-like phantoms with tumor inclusions utilizing both the in-plane and new cross-plane data in [25]. A novel compound imaging approach presented to overcome these physical constraints and improve the imaging capabilities of a multistatic radar imaging modality for breast scanning applications discussed in [6]. A microwave imaging system developed as a clinical diagnostic tool operating in the 3-to 8-GHz region using multistatic data collection in [26].…”

Section: Introductionmentioning

confidence: 99%

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Metamaterial inspired THz antenna for breast cancer detection

Geetharamani

Aathmanesan

2019

SN Appl. Sci.

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Metamaterial inspired Terahertz (THz) antenna for breast cancer detection proposed in this paper. The proposed antenna consists of a simple rectangular patch configuration integrated with Complementary Split Ring Resonator (CSRR). The design equations along with the equivalent circuit and permittivity calculations also presented in this paper. The experimental technique for detection of tumor in human breast model by the simulation technique also presented. The proposed metamaterial inspired antenna operates at 1 THz frequency with 20 dBi of gain. Its design evolution process, parametric study, and results such as farfield radiations also presented in this paper.

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Section: Methodsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metamaterial inspired THz antenna for breast cancer detection

Geetharamani

Aathmanesan

2019

SN Appl. Sci.

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“…Radar imaging systems provide a qualitative, spatial, scattering map of the dielectric scatterers of the Object-Under-Test (OUT) inside the domain [1]- [3]. Conversely, tomographic or inverse scattering techniques provide structural and spatial information by producing a quantitative map of permittivity and conductivity through solving a non-linear ill-posed inverse scattering problem [4]- [7].…”

Section: Introductionmentioning

confidence: 99%

Less Becomes More for Microwave Imaging: Design and Validation of an Ultrawide-Band Measurement Array

Gibbins

Byrne

Henriksson³

et al. 2017

IEEE Antennas Propag. Mag.

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Use of multi‐angle ultra‐wide band microwave sounding for high resolution breast imaging

et al. 2020

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Purpose: This report proposes an approach to develop a method of microwave imaging for early, noninvasive diagnosis of breast tumors. Here we describe a data-processing method for obtaining radio images of biological heterogeneities and a new method for filtering static noise in received signals. Methods: A specialized radar system was developed in the present study and used to perform sounding of synthetic phantoms with the dielectric properties of breast tissue in the range of 2-8 GHz. Datasets thus contained synthetic structures that imitated the dielectric properties of breast tissues and tumors. The permittivity values of the created artificial materials were verified using a waveguide cell. Tumors were simulated via plastic balls with a diameter of 1 cm that were filled with saline. A special ultra-wide band (UWB) radar system developed at Tomsk State University was used to register radar responses from the phantoms. The radar system included the vector reflectometer, the UWB antenna, and the mechanical scanner that provided sounding in the hemisphere. We also used the time-domain signals processing method to obtain the radio image signals. In this method, all signals received during scanning in the hemisphere are added with calculated delay for the given focus point. Special filtering of the constant components of the signal at each of the angular sounding latitudes was used to eliminate clutter in the received signal. This solution allowed us to account for additive clutter in the received signal from structural elements during scanning in the hemisphere. The influence of the number of angles on the quality of the resulting radio image was evaluated. Results: The phantoms of a female breast and a malignant tumor from artificial materials with electrophysical characteristics close to those of real tissues have been developed. This facilitated verification of the proposed method for constructing radio images under more clinically relevant conditions. The proposed filtering of the constant components of the signal effectively doubled the signal-to-noise ratio in the resulting radio image compared with the standard algorithm of clutter filtering. The influence of different numbers of scan points on the quality of the final radio image are presented herein. It is concluded that it is sufficient to use not more than 600-800 sounding points for acceptable image quality. A further increase in the number of angles does not significantly improve image quality despite increasing the scan time. Conclusions: Scanning in the hemisphere of the breast phantom using the proposed method of clutter filtering show that multi-angle microwave imaging can form accurate three-dimensional (3D) images with double the level of signal-to-clutter compared with the standard filtering approach. The images of artificial tumors were obtained when sounding in the range of 2-8 GHz with the resolution of about 5-7 mm.

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Compound Radar Approach for Breast Imaging

Cited by 65 publications

References 37 publications

Metamaterial inspired THz antenna for breast cancer detection

Metamaterial inspired THz antenna for breast cancer detection

Less Becomes More for Microwave Imaging: Design and Validation of an Ultrawide-Band Measurement Array

Use of multi‐angle ultra‐wide band microwave sounding for high resolution breast imaging

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