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 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.

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.

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.

A microwave breast imaging system using elliptical uniplanar antennas in a circular-array setup

2015 ◽  
Author(s):  
Maria Koutsoupidou ◽  
Evangelos Groumpas ◽  
Constantine G. Kakoyiannis ◽  
Irene S. Karanasiou ◽  
Michael Gargalakos ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
Circular Array ◽  
Microwave Breast Imaging

scholarly journals A Homogeneous Breast Phantom Measurement System with an Improved Modified Microwave Imaging Antenna Sensor

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2962 ◽  
Author(s):  
Mohammad Tariqul Islam ◽  
Md. Samsuzzaman ◽  
Md. Tarikul Islam ◽  
Salehin Kibria ◽  
Mandeep Jit Singh
Keyword(s):  
Measurement System ◽  
Breast Imaging ◽  
Imaging System ◽  
Microwave Imaging ◽  
Microwave Antenna ◽  
Phantom Measurement ◽  
Additional Tool ◽  
Sensor Performance ◽  
Breast Phantom ◽  
Microwave Breast Imaging

Microwave breast imaging has been reported as having the most potential to become an alternative or additional tool to the existing X-ray mammography technique for detecting breast tumors. Microwave antenna sensor performance plays a significant role in microwave imaging system applications because the image quality is mostly affected by the microwave antenna sensor array properties like the number of antenna sensors in the array and the size of the antenna sensors. In this paper, a new system for successful early detection of a breast tumor using a balanced slotted antipodal Vivaldi Antenna (BSAVA) sensor is presented. The designed antenna sensor has an overall dimension of 0.401λ × 0.401λ × 0.016λ at the first resonant frequency and operates between 3.01 to 11 GHz under 10 dB. The radiating fins are modified by etching three slots on both fins which increases the operating bandwidth, directionality of radiation pattern, gain and efficiency. The antenna sensor performance of both the frequency domain and time domain scenarios and high-fidelity factor with NFD is also investigated. The antenna sensor can send and receive short electromagnetic pulses in the near field with low loss, little distortion and highly directionality. A realistic homogenous breast phantom is fabricated, and a breast phantom measurement system is developed where a two antennas sensor is placed on the breast model rotated by a mechanical scanner. The tumor response was investigated by analyzing the backscattering signals and successful image construction proves that the proposed microwave antenna sensor can be a suitable candidate for a high-resolution microwave breast imaging system.

On the development of a clinical full-vectorial 3D microwave breast imaging system

2015 ◽  
Author(s):  
Majid Ostadrahimi ◽  
Anastasia Baran ◽  
Mohammad Asefi ◽  
Cameron Kaye ◽  
Kyle Nemez ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
Microwave Breast Imaging
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