scholarly journals Microwave Breast Imaging System Prototype with Integrated Numerical Characterization

2012 ◽  
Vol 2012 ◽  
pp. 1-18 ◽  
Author(s):  
Mark Haynes ◽  
John Stang ◽  
Mahta Moghaddam
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
Current Model ◽  
Imaging Systems ◽  
Simple Test ◽  
Ansoft Hfss ◽  
Numerical Characterization ◽  
Microwave Breast Imaging ◽  
System Prototype ◽  
Test Objects

The increasing number of experimental microwave breast imaging systems and the need to properly model them have motivated our development of an integrated numerical characterization technique. We use Ansoft HFSS and a formalism we developed previously to numerically characterize anS-parameter- based breast imaging system and link it to an inverse scattering algorithm. We show successful reconstructions of simple test objects using synthetic and experimental data. We demonstrate the sensitivity of image reconstructions to knowledge of the background dielectric properties and show the limits of the current model.

Validation of Wavelia Microwave Breast Imaging System Using Mammography Breast Density

2021 ◽  
Author(s):  
Yazan Abdoush ◽  
Angie Fasoula ◽  
Luc Duchesne ◽  
Julio D. Gil Cano ◽  
Brian M. Moloney ◽  
...  
Keyword(s):  
Breast Density ◽  
Breast Imaging ◽  
Imaging System ◽  
Microwave Breast Imaging

Ongoing development of microwave breast imaging system components

2011 ◽  
Author(s):  
Mark Haynes ◽  
Line van Nieuwstadt ◽  
Steven Clarkson ◽  
John Stang ◽  
Clare Ward ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
System Components ◽  
Ongoing Development ◽  
Microwave Breast Imaging

scholarly journals On-Site Validation of a Microwave Breast Imaging System, before First Patient Study

Diagnostics ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 53 ◽  
Author(s):  
Angie Fasoula ◽  
Luc Duchesne ◽  
Julio Gil Cano ◽  
Peter Lawrence ◽  
Guillaume Robin ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
Imaging Modality ◽  
Disease Diagnosis ◽  
Operating Conditions ◽  
University Hospital ◽  
Radar Signal ◽  
Clinical Test ◽  
Signal Processing Algorithms ◽  
Microwave Breast Imaging

This paper presents the Wavelia microwave breast imaging system that has been recently installed at the Galway University Hospital, Ireland, for a first-in-human pilot clinical test. Microwave breast imaging has been extensively investigated over the last two decades as an alternative imaging modality that could potentially bring complementary information to state-of-the-art modalities such as X-ray mammography. Following an overview of the main working principles of this technology, the Wavelia imaging system architecture is presented, as are the radar signal processing algorithms that are used in forming the microwave images in which small tumors could be detectable for disease diagnosis. The methodology and specific quality metrics that have been developed to properly evaluate and validate the performance of the imaging system using complex breast phantoms that are scanned at controlled measurement conditions are also presented in the paper. Indicative results from the application of this methodology to the on-site validation of the imaging system after its installation at the hospital for pilot clinical testing are thoroughly presented and discussed. Given that the imaging system is still at the prototype level of development, a rigorous quality assessment and system validation at nominal operating conditions is very important in order to ensure high-quality clinical data collection.

scholarly journals Suite of 3D test objects for performance assessment of hybrid photoacoustic-ultrasound breast imaging systems

2021 ◽  
Vol 27 (07) ◽  
Author(s):  
Maura Dantuma ◽  
Saskia C. Kruitwagen ◽  
Marlies J. Weggemans ◽  
Tim J. P. M. Op’t Root ◽  
Srirang Manohar
Keyword(s):  
Performance Assessment ◽  
Breast Imaging ◽  
Imaging Systems ◽  
Test Objects

Laser Surface Estimation for Microwave Breast Imaging Systems

2011 ◽  
Vol 58 (5) ◽  
pp. 1193-1199 ◽  
Author(s):  
T C Williams ◽  
J Bourqui ◽  
T R Cameron ◽  
M Okoniewski ◽  
E C Fear
Keyword(s):  
Breast Imaging ◽  
Laser Surface ◽  
Imaging Systems ◽  
Surface Estimation ◽  
Microwave Breast Imaging

A miniaturized directional antenna for microwave breast imaging applications

2017 ◽  
Vol 9 (10) ◽  
pp. 2013-2018 ◽  
Author(s):  
Md Zulfiker Mahmud ◽  
Mohammad Tariqul Islam ◽  
Md Naimur Rahman ◽  
Touhidul Alam ◽  
Md Samsuzzaman
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
Directional Antenna ◽  
Impedance Bandwidth ◽  
Face To Face ◽  
Antenna Performance ◽  
Directional Radiation ◽  
Lower Frequency Band ◽  
Microwave Breast Imaging ◽  
The Time Domain

A novel compact directional antenna with improved gain is proposed for microwave breast imaging (MBI) applications. The radiating fins are modified by etching several slots to make the antenna compact and enhance antenna performance in terms of bandwidth, gain, efficiency, and directivity. Several parameters are studied and optimized to frequency from 3.1 to 6.5 GHz, which is typically used in the breast imaging system. The electrical length of the antenna is 0.39λ × 0.46λ × 0.01λ at the lower frequency band. The result shows that the antenna exhibits −10 dB impedance bandwidth of 4.3 GHz (2.7–7 GHz) with directional radiation pattern. The peak gain of the proposed prototype is 7.8 dBi and fractional bandwidth is 92%. The time domain results show that the fidelity factor for face to face is 0.92 and for side by side is 0.62, which prove the directivity and lower distortion of the signal. The proposed prototype is successfully simulated, fabricated, and measured.

Numerical and experimental analysis of a transmission-based breast imaging system: a study of application to patients

2020 ◽  
Vol 12 (6) ◽  
pp. 469-476
Author(s):  
Elham Norouzzadeh ◽  
Somayyeh Chamaani ◽  
Jochen Moll ◽  
Christian Kexel ◽  
Duy Hai Nguyen ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
Breast Ultrasound ◽  
Imaging Systems ◽  
Ultra Wideband ◽  
Resonance Imaging ◽  
X Ray ◽  
Qualitative And Quantitative ◽  
System A ◽  
Technological Limitations

AbstractEarly detection of breast cancer is required to increase the chances of a successful treatment. However, current breast-imaging systems such as X-Ray mammography, breast ultrasound, and magnetic resonance imaging have technological limitations so that novel solutions are needed to address this major societal problem. The current paper considers ultra-wideband (UWB) microwave radiation in the frequency band from 1 to 9 GHz. Given by the non-ionizing nature of microwaves frequent check-ups are more feasible. In this work, we propose algorithms for qualitative and quantitative microwave breast imaging for a transmission-based UWB system. Based on numerical and experimental data, the performance of the algorithms has been investigated and compared. Finally, microwave images obtained during an initial patient study are discussed relative to corresponding X-ray images.

scholarly journals Antenna Evaluation for Ultra-Wideband Microwave Imaging

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Jeremie Bourqui ◽  
Mark A. Campbell ◽  
Trevor Williams ◽  
Elise C. Fear
Keyword(s):  
Breast Imaging ◽  
Performance Metrics ◽  
Imaging System ◽  
Ultra Wideband ◽  
Frequency Range ◽  
Immersion Medium ◽  
Antenna Performance ◽  
Microwave Breast Imaging ◽  
The Relationship ◽  
Insight Into

Numerous antenna designs have been proposed for microwave breast imaging utilizing an ultra-wideband frequency range. The antennas are typically compact, operate in an immersion medium, and have a band covering at least 2–10 GHz. We have developed 3 antennas for our UWB microwave breast imaging system. In this contribution, we compare the performance of the antennas in order to gain insight into the relationship between antenna performance metrics and image quality.

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