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.

scholarly journals A Low Cost and Portable Microwave Imaging System for Breast Tumor Detection Using UWB Directional Antenna array

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
M. T. Islam ◽  
M. Z. Mahmud ◽  
M. Tarikul Islam ◽  
S. Kibria ◽  
M. Samsuzzaman
Keyword(s):  
Dielectric Properties ◽  
Breast Tumor ◽  
Breast Imaging ◽  
Imaging System ◽  
Low Cost ◽  
Microwave Imaging ◽  
Dielectric Constants ◽  
Ultra Wideband ◽  
Slot Antenna ◽  
Breast Phantom

Abstract Globally, breast cancer is a major reason for female mortality. Due to the limitations of current clinical imaging, the researchers are encouraged to explore alternative and complementary tools to available techniques to detect the breast tumor in an earlier stage. This article outlines a new, portable, and low-cost microwave imaging (MWI) system using an iterative enhancing technique for breast imaging. A compact side slotted tapered slot antenna is designed for microwave imaging. The radiating fins of tapered slot antenna are modified by etching nine rectangular side slots. The irregular slots on the radiating fins enhance the electrical length as well as produce strong directive radiation due to the suppression of induced surface currents that radiate vertically at the outer edges of the radiating arms with end-fire direction. It has remarkable effects on efficiency and gain. With the addition of slots, the side-lobe levels are reduced, the gain of the main-lobe is increased and corrects the squint effects simultaneously, thus improving the characteristics of the radiation. For experimental validation, a heterogeneous breast phantom was developed that contains dielectric properties identical to real breast tissues with the inclusion of tumors. An alternative PC controlled and microcontroller-based mechanical MWI system is designed and developed to collect the antenna scattering signal. The radiated backscattered signals from the targeted area of the human body are analyzed to reveal the changes in dielectric properties in tissues. The dielectric constants of tumorous cells are higher than that of normal tissues due to their higher water content. The remarkable deviation of the scattered field is processed by using newly proposed Iteratively Corrected Delay and Sum (IC-DAS) algorithm and the reconstruction of the image of the phantom interior is done. The developed UWB (Ultra-Wideband) antenna based MWI has been able to perform the detection of tumorous cells in breast phantom that can pave the way to saving lives.

A New Wideband Microwave Antenna for Breast Cancer Detection

2018 ◽  
Author(s):  
Lulu Wang ◽  
Jinzhang Xu
Keyword(s):  
Breast Cancer ◽  
Early Diagnosis ◽  
Cancer Detection ◽  
Breast Imaging ◽  
Imaging System ◽  
Microwave Imaging ◽  
Breast Cancer Detection ◽  
Microwave Antenna ◽  
Breast Lesions ◽  
Imaging Application

Previous studies have shown that microwave imaging offers an alternative or additional way for early diagnosis of breast cancer. Microwave antenna plays an important role in a microwave imaging system. The paper presents a wideband microwave antenna for medical microwave breast imaging application. Various simulations were conducted to validate the proposed antenna. Results show that the proposed antenna has the potential for application in a microwave imaging system to identify breast lesions.

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 MRI-Derived 3-D-Printed Breast Phantom for Microwave Breast Imaging Validation

2012 ◽  
Vol 11 ◽  
pp. 1610-1613 ◽  
Author(s):  
Matthew J. Burfeindt ◽  
Timothy J. Colgan ◽  
R. Owen Mays ◽  
Jacob D. Shea ◽  
Nader Behdad ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Breast Phantom ◽  
Microwave Breast Imaging

scholarly journals Microwave Breast Phantom Measurement System With Compact Side Slotted Directional Antenna

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 5321-5330 ◽  
Author(s):  
Mohammad Tariqul Islam ◽  
Md. Zulfiker Mahmud ◽  
Norbahiah Misran ◽  
Jun-Ichi Takada ◽  
Mengu Cho
Keyword(s):  
Measurement System ◽  
Directional Antenna ◽  
Phantom Measurement ◽  
Breast Phantom

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 heterogeneous breast phantom for microwave breast imaging

2009 ◽  
Author(s):  
M. Ostadrahimi ◽  
R. Reopelle ◽  
S. Noghanian ◽  
S. Pistorius ◽  
A. Vahedi ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Breast Phantom ◽  
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.

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