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Breast, breast cancer, mammography

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https://www.readbyqxmd.com/read/28448836/breast-cancer-detection-in-automated-3d-breast-ultrasound-using-iso-contours-and-cascaded-rusboosts
#1
Ehsan Kozegar, Mohsen Soryani, Hamid Behnam, Masoumeh Salamati, Tao Tan
Automated 3D breast ultrasound (ABUS) is a new popular modality as an adjunct to mammography for detecting cancers in women with dense breasts. In this paper, a multi-stage computer aided detection system is proposed to detect cancers in ABUS images. In the first step, an efficient despeckling method called OBNLM is applied on the images to reduce speckle noise. Afterwards, a new algorithm based on isocontours is applied to detect initial candidates as the boundary of masses is hypo echoic. To reduce false generated isocontours, features such as hypoechoicity, roundness, area and contour strength are used...
April 20, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28447112/-imaging-diagnostics-of-breast-metastases-from-extramammary-tumors
#2
REVIEW
S Wienbeck, S Nemat, J Lotz, A Surov
Breast metastases of solid extramammary tumors are very rare in comparison to primary malignancies of the breast and account for only 0.33-6.3% of all malignant neoplasms of the breast. The most common primary tumors are malignant melanoma, distant sarcomas, lung cancer, ovarian cancer, renal cell cancer and thyroid cancer in decreasing order of frequency. This review article summarizes the clinical features and the different imaging findings of breast metastases from different extramammary solid tumors. Breast metastases are often incidental findings in computed tomography (CT) or positron emission tomography CT (PET-CT) imaging...
April 26, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28445683/impact-of-preoperative-breast-mr-imaging-and-mr-guided-surgery-on-diagnosis-and-surgical-outcome-of-women-with-invasive-breast-cancer-with-and-without-dcis-component
#3
Christiane K Kuhl, Kevin Strobel, Heribert Bieling, Eva Wardelmann, Walther Kuhn, Nikolaus Maass, Simone Schrading
Purpose To (a) compare the diagnostic accuracy of breast magnetic resonance (MR) imaging with that of conventional imaging (digital mammography and breast ultrasonography) in the identification of ductal carcinoma in situ (DCIS) components of biopsy-proven invasive breast cancer before surgery and (b) investigate the surgical outcome (positive margin rates and mastectomy rates) of women with breast cancer who underwent preoperative MR imaging combined with MR-guided needle biopsy and/or MR-guided lesion localization or bracketing where appropriate...
April 26, 2017: Radiology
https://www.readbyqxmd.com/read/28444996/breast-arterial-calcification-association-with-coronary-artery-calcium-scoring-and-implications-for-cardiovascular-risk-assessment-in-women
#4
REVIEW
Angela J Ryan, Andrew D Choi, Brian G Choi, Jannet F Lewis
Breast arterial calcification (BAC) is a type of medial artery calcification that can be seen incidentally on mammography. Studies have suggested association of BAC with cardiovascular risk factors, coronary artery disease (CAD), and cardiovascular morbidity and mortality. Recently published studies have also suggested a modest correlation of BAC with coronary artery calcium (CAC) scoring. Roughly 40 million mammograms are already performed annually in the United States with overlap in patients that undergo CAD screening via CAC scoring...
April 26, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28443199/overdiagnosis-of-breast-cancer-in-population-screening-does-it-make-breast-screening-worthless
#5
Nehmat Houssami
The risk of breast cancer (BC) overdiagnosis attributed to mammography screening is an unresolved issue, complicated by heterogeneity in the methodology of quantifying its magnitude, and both political and scientific elements surrounding interpretation of the evidence on this phenomenon. Evidence from randomized trials and also from observational studies shows that mammography screening reduces the risk of BC death; similarly, these studies provide sufficient evidence that overdiagnosis represents a serious harm from population breast screening...
February 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28441367/imaging-management-of-breast-density-a-controversial-risk-factor-for-breast-cancer
#6
Shannon Falcon, Angela Williams, Jared Weinfurtner, Jennifer S Drukteinis
BACKGROUND: Breast density is well recognized as an independent risk factor for the development of breast cancer. However, the magnitude of risk is controversial. As the public becomes increasingly aware of breast density as a risk factor, legislation and notification laws in relation to breast density have become common throughout the United States. Awareness of breast density as a risk factor for breast cancer presents new challenges for the clinician in the approach to the management and screening of women with dense breasts...
April 2017: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/28436405/a-comparison-of-methods-for-three-class-mammograms-classification
#7
Marina Milosevic, Zeljko Jovanovic, Dragan Jankovic
BACKGROUND: Mammography is considered the gold standard for early breast cancer detection but it is very difficult to interpret mammograms for many reason. Computer aided diagnosis (CAD) is an important development that may help to improve the performance in breast cancer detection. OBJECTIVE: We present a CAD system based on feature extraction techniques for detecting abnormal patterns in digital mammograms. METHODS: Computed features based on gray-level co-occurrence matrices (GLCM) are used to evaluate the effectiveness of textural information possessed by mass regions...
April 14, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28435432/foundation-and-methodologies-in-computer-aided-diagnosis-systems-for-breast-cancer-detection
#8
REVIEW
Afsaneh Jalalian, Syamsiah Mashohor, Rozi Mahmud, Babak Karasfi, M Iqbal B Saripan, Abdul Rahman B Ramli
Breast cancer is the most prevalent cancer that affects women all over the world. Early detection and treatment of breast cancer could decline the mortality rate. Some issues such as technical reasons, which related to imaging quality and human error, increase misdiagnosis of breast cancer by radiologists. Computer-aided detection systems (CADs) are developed to overcome these restrictions and have been studied in many imaging modalities for breast cancer detection in recent years. The CAD systems improve radiologists' performance in finding and discriminating between the normal and abnormal tissues...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28432494/primary-prevention-and-screening-practices-among-long-term-breast-cancer-survivors
#9
Lori Mandelzweig, Angela Chetrit, Tova Amitai, Barbara Silverman, Nava Siegelmann-Danieli, Siegal Sadetzki
PURPOSE: Parallel to increasing survival of breast cancer (BC) patients, a need has arisen to characterize the follow-up required to improve and maintain their health. Our study aimed to assess changes in lifestyle habits over time among the study population, compare compliance rates of selected primary and secondary prevention practices between long-term BC survivors and an age-matched comparison group, and identify factors associated with compliance to these practices. METHODS: The study population comprised 250 Israeli BC survivors, diagnosed with BC between 1999 and 2003, without evidence of disease after 8-12 years, and 250 women with no cancer history, individually matched to survivors by age and area of residence...
April 21, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28430705/disparities-in-female-breast-cancer-stage-at-diagnosis-in-new-jersey-a-spatial-temporal-analysis
#10
Lisa M Roche, Xiaoling Niu, Antoinette M Stroup, Kevin A Henry
BACKGROUND: Despite improvements in early detection of breast cancer, disparities persist in stage at diagnosis, which is an important prognostic factor. METHODS: We used the space-time scan statistic in SaTScan to identify geographic areas and time periods with significantly elevated proportions of female breast cancer diagnosed at the in situ or distant stage in New Jersey. The analyses were conducted with census tracts as the geographic unit of analysis, elliptical spatial windows, 3-year temporal windows, and Poisson models...
December 22, 2016: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/28429195/computer-assisted-diagnosis-system-for-breast-cancer-in-computed-tomography-laser-mammography-ctlm
#11
Afsaneh Jalalian, Syamsiah Mashohor, Rozi Mahmud, Babak Karasfi, M Iqbal Saripan, Abdul Rahman Ramli
Computed tomography laser mammography (Eid et al. Egyp J Radiol Nucl Med, 37(1): p. 633-643, 1) is a non-invasive imaging modality for breast cancer diagnosis, which is time-consuming and challenging for the radiologist to interpret the images. Some issues have increased the missed diagnosis of radiologists in visual manner assessment in CTLM images, such as technical reasons which are related to imaging quality and human error due to the structural complexity in appearance. The purpose of this study is to develop a computer-aided diagnosis framework to enhance the performance of radiologist in the interpretation of CTLM images...
April 20, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28428650/routine-mammography-an-opportunity-for-the-diagnosis-of-chronic-degenerative-diseases-a-cross-sectional-study
#12
Flávio Augusto Teixeira Ronzani, Filomena Maria Kirchmaier, Nathália Mussi Monteze, Edson José de Carvalho Magacho, Marcus Gomes Bastos, Natália Maria da Silva Fernandes
OBJECTIVE: The aim of this study was to evaluate breast arterial calcification (BAC) detected on routine mammography, analyzing its association with chronic degenerative disease. MATERIALS AND METHODS: This was a cross-sectional study involving women treated at a specialized outpatient clinic for high-risk hypertension, diabetes, or chronic kidney disease, as well as volunteers who participated in a study to validate a method of screening for occult renal disease...
March 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28428649/role-of-magnetic-resonance-imaging-in-the-planning-of-breast-cancer-treatment-strategies-comparison-with-conventional-imaging-techniques
#13
Luciana Karla Lira França, Almir Galvão Vieira Bitencourt, Hugo Lamartine Souza Paiva, Caroline Baptista Silva, Nara Pacheco Pereira, Jociana Paludo, Luciana Graziano, Camila Souza Guatelli, Juliana Alves de Souza, Elvira Ferreira Marques
OBJECTIVE: To assess the role of magnetic resonance imaging (MRI) in the planning of breast cancer treatment strategies. MATERIALS AND METHODS: The study included 160 women diagnosed with breast cancer, who underwent breast MRI for preoperative staging. Using Pearson's correlation coefficient (r), we compared the size of the primary tumor, as determined by MRI, by conventional imaging (mammography and ultrasound), and in the pathological examination (gold standard)...
March 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28427083/cumulative-risk-of-breast-cancer-screening-outcomes-according-to-the-presence-of-previous-benign-breast-disease-and-family-history-of-breast-cancer-supporting-personalised-screening
#14
M Román, M J Quintana, J Ferrer, M Sala, X Castells
BACKGROUND: Our aim was to assess the cumulative risk of false-positive screening results, screen-detected cancer, and interval breast cancer in mammography screening among women with and without a previous benign breast disease and a family history of breast cancer. METHODS: The cohort included 42 928 women first screened at the age of 50-51 years at three areas of the Spanish Screening Programme (Girona, and two areas in Barcelona) between 1996 and 2011, and followed up until December 2012...
April 20, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28421611/breast-density-measurement-using-photon-counting-spectral-mammography
#15
Henrik Johansson, Miriam von Tiedemann, Klaus Erhard, Harald Heese, Huanjun Ding, Sabee Molloi, Erik Fredenberg
PURPOSE: To evaluate a method for measuring breast density using photon-counting spectral mammography. Breast density is an indicator of breast cancer risk and diagnostic accuracy in mammography, and can be used as input to personalized screening, treatment monitoring and dose estimation. METHODS: The measurement method employs the spectral difference in x-ray attenuation between adipose and fibro-glandular tissue, and does not rely on any a-priori information. The method was evaluated using phantom measurements on tissue-equivalent material (slabs and breast-shaped phantoms) and using clinical data from a screening population (n=1329)...
April 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28420325/usefulness-of-grayscale-inverted-images-in-addition-to-standard-images-in-digital-mammography
#16
Ayşegül Altunkeser, M Kazım Körez
BACKGROUND: Mammography is essential for early diagnosis of breast cancer, which is the most common type of cancer in females that is associated with a high mortality rate. We investigated whether evaluation of the grayscale inverted images of mammograms would aid in increasing the diagnostic sensitivity of the mammographic imaging technique. METHODS: Our study included 636 mammograms of 159 women who had undergone digital mammography. Standard, grayscale inverted, and standard plus grayscale inverted images were sequentially examined three times, at 15-day intervals, for the presence or assessment of pathological changes in the skin, calcification, asymmetric density, mass lesions, structural distortions, and intramammary and axillary lymph nodes...
April 18, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28419909/reduction-in-advanced-breast-cancer-after-introduction-of-a-mammography-screening-program-in-tyrol-austria
#17
W Oberaigner, Sabine Geiger-Gritsch, M Edlinger, M Daniaux, R Knapp, M Hubalek, U Siebert, C Marth, W Buchberger
BACKGROUND: We analysed all female breast cancer (BC) cases in Tyrol/Austria regarding the shift in cancer characteristics, especially the shift in advanced BC, for the group exposed to screening as compared to the group unexposed to screening. METHODS: The analysis was based on all BC cases diagnosed in women aged 40-69 years, resident in Tyrol, and diagnosed between 2009 and 2013. The data were linked to the Tyrolean mammography screening programme database to classify BC cases as "exposed to screening" or "unexposed to screening"...
April 15, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28419815/diagnostic-performance-of-and-breast-tissue-changes-at-early-breast-mr-imaging-surveillance-in-women-after-breast-conservation-therapy
#18
Eun Jeong Kim, Bong Joo Kang, Sung Hun Kim, In Kyung Youn, Ji Eun Baek, Hyun Sil Lee
Purpose To investigate the diagnostic performance and tissue changes in early (1 year or less) breast magnetic resonance (MR) imaging surveillance in women who underwent breast conservation therapy for breast cancer. Materials and Methods This prospective study was approved by the institutional review board, and written informed consent was obtained. Between April 2014 and June 2016, 414 women (mean age, 51.5 years; range, 21-81 years) who underwent 422 early surveillance breast MR imaging examinations (median, 6...
April 18, 2017: Radiology
https://www.readbyqxmd.com/read/28415974/evaluation-of-the-association-between-quantitative-mammographic-density-and-breast-cancer-occurred-in-different-quadrants
#19
Siwa Chan, Jeon-Hor Chen, Shunshan Li, Rita Chang, Darh-Cherng Yeh, Ruey-Feng Chang, Lee-Ren Yeh, Jessica Kwong, Min-Ying Su
BACKGROUND: To investigate the relationship between mammographic density measured in four quadrants of a breast with the location of the occurred cancer. METHODS: One hundred and ten women diagnosed with unilateral breast cancer that could be determined in one specific breast quadrant were retrospectively studied. Women with previous cancer/breast surgery were excluded. The craniocaudal (CC) and mediolateral oblique (MLO) mammography of the contralateral normal breast were used to separate a breast into 4 quadrants: Upper-Outer (UO), Upper-Inner (UI), Lower-Outer (LO), and Lower-Inner (LI)...
April 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28412736/tumor-biology-clinicopathological-characteristics-and-prognosis-of-screen-detected-t1-invasive-non-palpable-breast-cancer-in-asymptomatic-chinese-women-2001-2014
#20
Bo Pan, Ru Yao, Yi-Dong Zhou, Qing-Li Zhu, Jie Shi, Qian-Qian Xu, Chang-Jun Wang, Shan-Shan You, Feng Mao, Yan Lin, Song-Jie Shen, Zhi-Yong Liang, Yu-Xin Jiang, Qiang Sun
BACKGROUND: Mammography screening usually detects low-risk breast cancer in the western world. However, little is known about the ultrasound and mammography screen-detected T1 invasive non-palpable breast cancer (NPBC) in asymptomatic Chinese women. RESULTS: With the increase of tumor size (T1a, b, c), lymph node positivity (8.7%, 18.3%, 26.0%, p = 0.018), pN (p = 0.028) and TNM stage (p = 0.035) increased accordingly. Tumor size (T1a, b, c) was correlated with high Ki-67 index (defined as ≥ 14%, 37...
February 17, 2017: Oncotarget
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