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A Novel Approach of a Low-Cost UWB Microwave Imaging System with High Resolution Based on SAR and a New Fast Reconstruction Algorithm for Early-Stage Breast Cancer Detection

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A Novel Approach of a Low-Cost UWB Microwave Imaging System with High Resolution Based on SAR and a New Fast Reconstruction Algorithm for Early-Stage Breast Cancer Detection

dc.contributor.author	Saban, Mohamed
dc.contributor.author	Vazquez Alejos, Ana
dc.contributor.author	Ruiz Alzola, Juan
dc.contributor.author	Rosado Muñoz, Alfredo
dc.contributor.author	Amdaouch, Ibtisam
dc.date.accessioned	2023-05-30T14:37:02Z
dc.date.available	2023-05-30T14:37:02Z
dc.date.issued	2022
dc.identifier.citation	Saban, Mohamed Vazquez Alejos, Ana Ruiz Alzola, Juan Rosado Muñoz, Alfredo Amdaouch, Ibtisam 2022 A Novel Approach of a Low-Cost UWB Microwave Imaging System with High Resolution Based on SAR and a New Fast Reconstruction Algorithm for Early-Stage Breast Cancer Detection Journal of Imaging 8 10 264
dc.identifier.uri	https://hdl.handle.net/10550/87125
dc.description.abstract	In this article, a new efficient and robust approach¿the high-resolution microwave imaging system¿for early breast cancer diagnosis is presented. The core concept of the proposed approach is to employ a combination of a newly proposed delay-and-sum (DAS) algorithm and the specific absorption rate (SAR) parameter to provide high image quality of breast tumors, along with fast image processing. The new algorithm enhances the tumor response by altering the parameter referring to the distance between the antenna and the tumor in the conventional DAS matrices. This adjustment entails a much clearer reconstructed image with short processing time. To achieve these aims, a high directional Vivaldi antenna is applied around a simulated hemispherical breast model with an embedded tumor. The detection of the tumor is carried out by calculating the maximum value of SAR inside the breast model. Consequently, the antenna position is relocated near the tumor region and is moved to nine positions in a trajectory path, leading to a shorter propagation distance in the image-creation process. At each position, the breast model is illuminated with short pulses of low power waves, and the back-scattered signals are recorded to produce a two-dimensional image of the scanned breast. Several simulations of testing scenarios for reconstruction imaging are investigated. These simulations involve different tumor sizes and materials. The influence of the number of antennas on the reconstructed images is also examined. Compared with the results from the conventional DAS, the proposed technique significantly improves the quality of the reconstructed images, and it detects and localizes the cancer inside the breast with high quality in a fast computing time, employing fewer antennas.
dc.language.iso	eng
dc.relation.ispartof	Journal of Imaging, 2022, vol. 8, num. 10, p. 264
dc.subject	Càncer
dc.subject	Ecografia mamària
dc.title	A Novel Approach of a Low-Cost UWB Microwave Imaging System with High Resolution Based on SAR and a New Fast Reconstruction Algorithm for Early-Stage Breast Cancer Detection
dc.type	journal article
dc.date.updated	2023-05-30T14:37:02Z
dc.identifier.doi	10.3390/jimaging8100264
dc.identifier.idgrec	159455
dc.rights.accessRights	open access