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Digital mammography

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https://www.readbyqxmd.com/read/29159811/a-deep-learning-method-for-classifying-mammographic-breast-density-categories
#1
Aly A Mohamed, Wendie A Berg, Hong Peng, Yahong Luo, Rachel C Jankowitz, Shandong Wu
PURPOSE: Mammographic breast density is an established risk marker for breast cancer and is visually assessed by radiologists in routine mammogram image reading, using four qualitative Breast Imaging and Reporting Data System (BI-RADS) breast density categories. It is particularly difficult for radiologists to consistently distinguish the two most common and most variably assigned BI-RADS categories, i.e., "scattered density" and "heterogeneously dense". The aim of this work was to investigate a deep learning-based breast density classifier to consistently distinguish these two categories, aiming at providing a potential computerized tool to assist radiologists in assigning a BI-RADS category in current clinical workflow...
November 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/29153365/comparison-of-screening-cedm-and-mri-for-women-at-increased-risk-for-breast-cancer-a-pilot-study
#2
Maxine S Jochelson, Katja Pinker, D David Dershaw, Mary Hughes, Girard F Gibbons, Kareem Rahbar, Mark E Robson, Debra A Mangino, Debra Goldman, Chaya S Moskowitz, Elizabeth A Morris, Janice S Sung
OBJECTIVES: Contrast enhanced digital mammography (CEDM) is a new breast imaging technology increasingly used in the diagnostic setting but its utility in the pure screening setting has not been reported. The goal of this pilot study is to prospectively compare screening CEDM to breast MRI in women with an increased risk for breast cancer. METHODS: In this IRB-approved HIPAA-compliant study, 318 women at increased breast cancer risk were consented (December 2012-May 2015) to undergo CEDM in addition to their scheduled MRI...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29153014/evolution-of-the-national-breast-screening-programme-in-ireland-two-year-interval-analysis-2004-2013-of-breastcheck
#3
Patricia E Fitzpatrick, Gráinne Greehy, Marie T Mooney, Fidelma Flanagan, Aideen Larke, Alissa Connors, Ann O'Doherty
Objective Monitoring breast screening programmes is essential to ensure quality. BreastCheck, the national breast screening programme in the Republic of Ireland, commenced screening in 2000, with full national expansion in 2007, and digital mammography introduced in 2008. We aimed to review the performance of BreastCheck from 1 January 2004 to 31 December 2013. Methods Using the customised clinical and administrative database, performance indicator data were collected from BreastCheck and compared with programme and European guideline standards...
January 1, 2017: Journal of Medical Screening
https://www.readbyqxmd.com/read/29141776/evaluation-of-a-new-ensemble-learning-framework-for-mass-classification-in-mammograms
#4
Omid Rahmani Seryasat, Javad Haddadnia
BACKGROUND: Mammography is the most common screening method for diagnosis of breast cancer. MATERIALS AND METHODS: In this study, a computer-aided system for diagnosis of benignity and malignity of the masses was implemented in mammogram images. In the computer aided diagnosis system, we first reduce the noise in the mammograms using an effective noise removal technique. After the noise removal, the mass in the region of interest must be segmented and this segmentation is done using a deformable model...
May 22, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29132564/tomosynthesis-in-breast-cancer-imaging-how-does-it-fit-into-preoperative-evaluation-and-surveillance
#5
REVIEW
Mohammad Eghtedari, Catherine Tsai, Julie Robles, Sarah L Blair, Haydee Ojeda-Fournier
An important limitation of conventional two-dimensional mammography is the overlap of dense breast tissue obscuring masses. Digital breast tomosynthesis (DBT) has emerged as a mammographic technology that overcomes this limitation and is considered an overall better mammogram. DBT has been shown to detect significantly more breast cancer than conventional two-dimensional mammography, and to decrease the number of callbacks for diagnostic evaluation from screening mammography. Usually the callback evaluation is deemed to be overlap of tissue requiring no further management...
January 2018: Surgical Oncology Clinics of North America
https://www.readbyqxmd.com/read/29131762/strengths-and-weaknesses-of-synthetic-mammography-in-screening
#6
Linda Ratanaprasatporn, Sona A Chikarmane, Catherine S Giess
Synthetic mammography (SM) consists of two-dimensional images reconstructed from digital breast tomosynthesis (DBT) data. Unlike standard full-field digital mammography (FFDM), SM does not require additional radiation exposure. SM is being introduced in breast imaging centers because early clinical data demonstrate that synthetic images are comparable to FFDM in cancer detection, positive predictive values, and recall rates. SM has completely replaced FFDM in some practices. Thus, an understanding of SM and its strengths and weaknesses compared with those of FFDM is essential...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29129518/breast-cancer-screening-with-digital-breast-tomosynthesis-4-year-experience-and-comparison-with-national-data
#7
Huay-Ben Pan, Kam-Fai Wong, Anthony Yao, Giu-Cheng Hsu, Chen-Pin Chou, Huei-Lung Liang, Jer-Shyung Huang, Hung-Ju Li, Shu-Chin Wang, Tsung-Lung Yang
BACKGROUND: To determine if mammography combined with tomosynthesis (DBT) leads to superior performance in screening for breast cancer compared to digital mammography alone. METHODS: We retrospectively collected data from A) the results of population-based mammography-screening provided by the National Cancer Registry in Taiwan, and B) the results from all screening mammography performed with DBT from 2012 through 2015 at Veterans General Hospital Kaohsiung (VGHKS) since the institution of DBT at the end of 2011...
November 9, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29127877/breast-arterial-calcification-on-screening-mammography-can-predict-significant-coronary-artery-disease-in-women
#8
Brendan S Kelly, Emer ScanlON, Helen Heneghan, Ciaran E Redmond, Gerard M Healy, Enda Mc Dermott, Eric J Heffernan, Ruth Prichard, Sorcha Mc Nally
INTRODUCTION: Breast Arterial Calcification (BAC) on digital mammography has been associated with an increased risk of Coronary Artery Disease (CAD). We aimed to investigate the association of BAC with findings on Coronary Computed Tomography Angiography (CCTA) within a cohort of women from the national breast screening program. METHODS: Symptomatic women (chest pain) aged between 50 and 65 who underwent a CCTA and who also had a screening mammography between 2014 and 2015 were recorded...
November 3, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29117707/susceptibility-of-iodine-concentration-map-of-dual-energy-contrast-enhanced-digital-mammography-for-quantitative-and-tumor-enhancement-assessment
#9
Yi-Shuan Hwang, Yun-Chung Cheung, Yu-Ying Lin, Hsiao-Lan Hsu, Hui-Yu Tsai
Background Dual-energy (DE) contrast-enhanced digital mammography (DE-CEDM) provides additional information on tumor angiogenesis. Purpose To investigate the susceptibility of reconstructing color-coded iodine concentration maps on the basis of quantitative calibrations of the iodine concentration and contrast-to-noise ratio (CNR) in DE-CEDM applications. Material and Methods A custom-made phantom filled with iodine concentrations in the range of 0.1-10 mg/cm(2) was used in calibrations. All DE images were acquired using the GE Senographe Essential system...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29106821/detection-rates-of-ductal-carcinoma-in-situ-with-biannual-digital-mammography-screening-radiologic-findings-support-pathologic-model-of-tumor-progression
#10
Stefanie Weigel, Laura Khil, Hans-Werner Hense, Thomas Decker, Jürgen Wellmann, Jan Heidrich, Alexander Sommer, Oliver Heidinger, Walter Heindel
Purpose To compare detection rates of ductal carcinoma in situ (DCIS), classified according to nuclear grade, between the prevalence round (baseline screening) and two subsequent screening rounds of a population-based digital mammography screening program, to assess differences over time. Materials and Methods The cancer registry provided data for 1970 graded pure DCIS cases from 16 screening regions of the prevalence round (baseline screening, from 2005 to 2008), first subsequent round, and second subsequent round; the interval between all screening rounds was 22-30 months...
November 6, 2017: Radiology
https://www.readbyqxmd.com/read/29105900/performance-characteristics-of-digital-vs-film-screen-mammography-in-community-practice
#11
Firas Dabbous, Therese A Dolecek, Sarah M Friedewald, Katherine Y Tossas-Milligan, Tere Macarol, Wm Thomas Summerfelt, Garth H Rauscher
We compared the performance characteristics of 297 629 full field digital (FFDM) and 416 791 screen film mammograms (SFM). Sensitivity increased with age, decreased with breast density, and was lower for more aggressive and lobular tumors. While sensitivity did not differ significantly by modality, specificity was generally 1%-2% points higher for FFDM than for SFM across age and breast density categories. The lower recall rate for FFDM vs SFM in our study may partially explain performance differences by modality...
November 5, 2017: Breast Journal
https://www.readbyqxmd.com/read/29103474/effectiveness-and-cost-effectiveness-of-double-reading-in-digital-mammography-screening-a-systematic-review-and-meta-analysis
#12
Margarita Posso, Teresa Puig, Misericòrdia Carles, Montserrat Rué, Carlos Canelo-Aybar, Xavier Bonfill
PURPOSE: Double reading is the strategy of choice for mammogram interpretation in screening programmes. It remains, however, unknown whether double reading is still the strategy of choice in the context of digital mammography. Our aim was to determine the effectiveness and cost-effectiveness of double reading versus single reading of digital mammograms in screening programmes. METHODS: We performed a systematic review by searching the PubMed, Embase, and Cochrane Library databases up to April 2017...
November 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29101985/acr-appropriateness-criteria-%C3%A2-monitoring-response-to-neoadjuvant-systemic-therapy-for%C3%A2-breast-cancer
#13
Priscilla J Slanetz, Linda Moy, Paul Baron, Roberta M diFlorio, Edward D Green, Samantha L Heller, Anna I Holbrook, Su-Ju Lee, Alana A Lewin, Ana P Lourenco, Bethany Niell, Ashley R Stuckey, Sunita Trikha, Nina S Vincoff, Susan P Weinstein, Monica M Yepes, Mary S Newell
Patients with locally advanced invasive breast cancers are often treated with neoadjuvant chemotherapy prior to definitive surgical intervention. The primary aims of this approach are to: 1) reduce tumor burden thereby permitting breast conservation rather than mastectomy; 2) promptly treat possible metastatic disease, whether or not it is detectable on preoperative staging; and 3) potentially tailor future chemotherapeutic decisions by monitoring in-vivo tumor response. Accurate radiological assessment permits optimal management and planning in this population...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101979/acr-appropriateness-criteria-%C3%A2-breast-cancer-screening
#14
Martha B Mainiero, Linda Moy, Paul Baron, Aarati D Didwania, Roberta M diFlorio, Edward D Green, Samantha L Heller, Anna I Holbrook, Su-Ju Lee, Alana A Lewin, Ana P Lourenco, Kara J Nance, Bethany L Niell, Priscilla J Slanetz, Ashley R Stuckey, Nina S Vincoff, Susan P Weinstein, Monica M Yepes, Mary S Newell
Breast cancer screening recommendations are based on risk factors. For average-risk women, screening mammography and/or digital breast tomosynthesis is recommended beginning at age 40. Ultrasound (US) may be useful as an adjunct to mammography for incremental cancer detection in women with dense breasts, but the balance between increased cancer detection and the increased risk of a false-positive examination should be considered in the decision. For intermediate-risk women, US or MRI may be indicated as an adjunct to mammography depending upon specific risk factors...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29098437/breast-compression-parameters-and-mammographic-density-in-the-norwegian-breast-cancer-screening-programme
#15
Nataliia Moshina, Marta Roman, Gunvor G Waade, Sofie Sebuødegård, Giske Ursin, Solveig Hofvind
OBJECTIVES: To investigate possible associations between breast compression parameters, including compression force, pressure and compressed breast thickness, and mammographic density assessed by an automated software. METHODS: We obtained data on breast compression parameters, breast volume, absolute and percentage dense volume, and body mass index for 14,698 women screened with two-view (craniocaudal, CC, and mediolateral oblique, MLO) digital mammography, in the Norwegian Breast Cancer Screening Programme, 2014-2015...
November 2, 2017: European Radiology
https://www.readbyqxmd.com/read/29098168/comparing-search-patterns-in-digital-breast-tomosynthesis-and-full-field-digital-mammography-an-eye-tracking-study
#16
Avi Aizenman, Trafton Drew, Krista A Ehinger, Dianne Georgian-Smith, Jeremy M Wolfe
As a promising imaging modality, digital breast tomosynthesis (DBT) leads to better diagnostic performance than traditional full-field digital mammograms (FFDM) alone. DBT allows different planes of the breast to be visualized, reducing occlusion from overlapping tissue. Although DBT is gaining popularity, best practices for search strategies in this medium are unclear. Eye tracking allowed us to describe search patterns adopted by radiologists searching DBT and FFDM images. Eleven radiologists examined eight DBT and FFDM cases...
October 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29070984/added-value-of-digital-breast-tomosynthesis-combined-with-digital-mammography-according-to-reader-agreement-changes-in-bi-rads-rate-and-follow-up-management
#17
Francesca Galati, Flaminia Marzocca, Erica Bassetti, Maria L Luciani, Sharon Tan, Carlo Catalano, Federica Pediconi
BACKGROUND: The aim of this study was to evaluate the added value of digital breast tomosynthesis (DBT) when combined with digital mammography (DM) in BI-RADS assessment and follow-up management. METHODS: From February 2014 to January 2015, 214 patients underwent DM and DBT, acquired with a Siemens Mammomat Inspiration unit. 2 expert readers independently reviewed the studies in 2 steps: DM and DM+DBT, according to BI-RADS rate. Patients with BI-RADS 0, 3, 4, and 5 were recalled for work-up...
September 2017: Breast Care
https://www.readbyqxmd.com/read/29066138/evidence-on-synthesized-two-dimensional-mammography-versus-digital-mammography-when-using-tomosynthesis-three-dimensional-mammography-for-population-breast-cancer-screening
#18
REVIEW
Nehmat Houssami
One limitation of using digital breast tomosynthesis (3-dimensional [3D] mammography) technology with conventional (2-dimensional [2D]) mammography for breast cancer (BC) screening is the increased radiation dose from dual acquisitions. To resolve this problem, synthesized 2D (s2D) reconstruction images similar to 2D mammography were developed using tomosynthesis acquisitions. The present review summarizes the evidence for s2D versus digital mammography (2D) when using tomosynthesis (3D) for BC screening to address whether using s2D instead of 2D (alongside 3D) will yield similar detection measures...
September 28, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29064756/concurrent-computer-aided-detection-improves-reading-time-of-digital-breast-tomosynthesis-and-maintains-interpretation-performance-in-a-multireader-multicase-study
#19
Richard A Benedikt, Justin E Boatsman, Cynthia A Swann, Aaron D Kirkpatrick, Alicia Y Toledano
OBJECTIVE: Digital breast tomosynthesis (DBT) is more accurate than full-field digital mammography alone but requires a longer reading time. A radiologist reader study evaluated the use of concurrent computer-aided detection (CAD) to shorten the reading time while maintaining interpretation performance. MATERIALS AND METHODS: A CAD system was developed to detect suspicious soft-tissue densities in DBT planes. Abnormalities are extracted from the plane in which they are detected and blended into the corresponding synthetic image...
October 24, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29064748/the-future-of-contrast-enhanced-mammography
#20
Matthew F Covington, Victor J Pizzitola, Roxanne Lorans, Barbara A Pockaj, Donald W Northfelt, Catherine M Appleton, Bhavika K Patel
OBJECTIVE: The purpose of this article is to discuss facilitators of and barriers to future implementation of contrast-enhanced mammography (CEM) in the United States. CONCLUSION: CEM provides low-energy 2D mammographic images analogous to digital mammography and contrast-enhanced recombined images that allow assessment of neovascularity similar to that offered by MRI. The utilization of CEM in the United States is currently low but could increase rapidly given the many potential indications for its clinical use...
October 24, 2017: AJR. American Journal of Roentgenology
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