scholarly journals Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection

2008 ◽  
Vol 2008 ◽  
pp. 1-9 ◽  
Author(s):  
M. Klemm ◽  
I. J. Craddock ◽  
J. A. Leendertz ◽  
A. Preece ◽  
R. Benjamin
Keyword(s):  
Breast Cancer ◽  
Cancer Detection ◽  
Focal Point ◽  
Breast Cancer Detection ◽  
Improve Image Quality ◽  
Microwave Radar ◽  
Uwb Radar ◽  
Coherent Radar ◽  
Beamforming Algorithm

We have evaluated a modified delay-and-sum (DAS) beamforming algorithm for breast cancer detection with a microwave radar-based system. The improved DAS algorithm uses an additional weight factor calculated at each focal point to improve image quality. These weights essentially represent the quality of preprocessing and coherent radar operation. Using a multistatic UWB radar system based on a hemispherical antenna array, we present experimental detection of 7 mm and 10 mm phantom tumours. We show that the new proposed DAS algorithm improves signal-to-clutter ratio in focused images by 2.65 dB for 10 mm tumour, and by 4.4 dB for 7 mm tumour.

scholarly journals Radioembolization in Metastatic Breast Cancer

2021 ◽  
Author(s):  
Amy Deipolyi ◽  
Yolanda Bryce ◽  
Ripal Gandhi
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Cancer Detection ◽  
Metastatic Breast ◽  
Breast Cancer Detection ◽  
Case Examples ◽  
Nccn Guidelines ◽  
Cancer Network ◽  
Emerging Therapy

AbstractMetastatic breast cancer (MBC) remains the second cause of cancer death in women, despite improvements in early breast cancer detection and treatments, with a 5-year survival of only 27%. Patients with MBC involving the liver have a 5-year survival of only 3.8 to 12%. Systemic therapy is the cornerstone for the treatment of MBC according to the National Comprehensive Cancer Network (NCCN) guidelines. Radioembolization is not specifically prescribed by the NCCN guidelines in the treatment of MBC liver metastasis, but is an emerging therapy with some promising results. The two primary reasons to offer radioembolization would be to prolong life and to palliate and improve quality of life. We review here the indications, contraindications, technique, case examples, and unanswered questions.

Provider’s volume and quality of breast cancer detection and treatment

2006 ◽  
Vol 105 (2) ◽  
pp. 117-132 ◽  
Author(s):  
Nicole Hébert-Croteau ◽  
Danièle Roberge ◽  
Jacques Brisson
Keyword(s):  
Breast Cancer ◽  
Cancer Detection ◽  
Breast Cancer Detection

IMPROVED BEAMFORMING ALGORITHM FOR IMAGING RECONSTRUCTION FOR EARLY BREAST CANCER DETECTION BY UWB

2013 ◽  
Vol 22 (10) ◽  
pp. 1340027 ◽  
Author(s):  
LI XU ◽  
XIA XIAO ◽  
TAKAMARO KIKKAWA
Keyword(s):  
Breast Cancer ◽  
Cancer Detection ◽  
Fdtd Method ◽  
Wide Band ◽  
Debye Model ◽  
Breast Cancer Detection ◽  
Imaging Reconstruction ◽  
Electric Parameters ◽  
Difference Time ◽  
Beamforming Algorithm

Ultra-wide band (UWB) microwave imaging is a promising method for the breast cancer detection based on the large contrast of electric parameters between the malignant tumor and its surrounded normal organisms. In this paper, a two-dimensional model of the breast organisms is numerically carried by the finite difference time domain (FDTD) method. The dispersion characteristics of the breast media are taken into account by single pole Debye model to approach the actual properties of the breast organism. In this method, a tumor is assumed in the model with two cases. The standard Capon beamforming (SCB) and doubly constrained robust Capon beamforming (DCRCB) algorithm performed to reconstruct the image is described in detail. The tumor can be detected and localized using the proposed algorithm and the result demonstrates a good stability of DCRCB algorithm.

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