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Digital mammography

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https://www.readbyqxmd.com/read/29792742/screening-mammography-findings-from-one-standard-projection-only-in-the-era-of-full-field-digital-mammography-and-digital-breast-tomosynthesis
#1
Ethan O Cohen, Hilda H Tso, Kanchan A Phalak, Ray C Mayo, Jessica W T Leung
OBJECTIVE: The purpose of this article is to compare outcomes of findings seen on one view only from screening full-field digital mammography (FFDM) and FFDM plus digital breast tomosynthesis (DBT). MATERIALS AND METHODS: A retrospective review was performed of 103,070 consecutive screening mammograms obtained from February 2011 through June 2014 at two community-based breast centers. Recalled findings prospectively seen on one view only were analyzed. Pearson chi-square test and Fisher exact test were performed, and 95% CIs were determined...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29768928/automated-daily-quality-control-analysis-for-mammography-in-a-multi-unit-imaging-center
#2
Veli-Matti Sundell, Teemu Mäkelä, Alexander Meaney, Touko Kaasalainen, Sauli Savolainen
Background The high requirements for mammography image quality necessitate a systematic quality assurance process. Digital imaging allows automation of the image quality analysis, which can potentially improve repeatability and objectivity compared to a visual evaluation made by the users. Purpose To develop an automatic image quality analysis software for daily mammography quality control in a multi-unit imaging center. Material and Methods An automated image quality analysis software using the discrete wavelet transform and multiresolution analysis was developed for the American College of Radiology accreditation phantom...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29768474/sonographic-visualization-of-nipple-blood-flow-can-help-differentiate-paget-disease-from-benign-eczematous-nipple-lesions
#3
Hideaki Ogata, Yukio Mitsuzuka, Naoko Honma, Miho Yoshida, Makoto Sumazaki, Fumi Saito, Masahiro Kobayashi, Kazutoshi Shibuya, Tetsuo Mikami, Hironori Kaneko
PURPOSE: Paget disease of the breast is a rare cancer that originates from the nipple-areolar complex. It is often overlooked and misdiagnosed as benign chronic eczema of the nipple. We aimed to retrospectively verify whether blood flow analysis using Doppler sonography was useful for detecting the presence of Paget disease. METHODS: In this retrospective study, 12 patients with pathologically proven unilateral nipple eczematous lesions (seven with Paget disease and five with simple dermatitis) were included...
2018: PloS One
https://www.readbyqxmd.com/read/29764880/digital-breast-tomosynthesis-plus-synthesised-images-versus-standard-full-field-digital-mammography-in-population-based-screening-tosyma-protocol-of-a-randomised-controlled-trial
#4
Stefanie Weigel, Joachim Gerss, Hans-Werner Hense, Miriam Krischke, Alexander Sommer, Jörg Czwoydzinski, Horst Lenzen, Laura Kerschke, Karin Spieker, Stefanie Dickmaenken, Sonja Baier, Marc Urban, Gerold Hecht, Oliver Heidinger, Joachim Kieschke, Walter Heindel
INTRODUCTION: Development of digital breast tomosynthesis (DBT) provides a technology that generates three-dimensional data sets, thus reducing the pitfalls of overlapping breast tissue. Observational studies suggest that the combination of two-dimensional (2D) digital mammography and DBT increases diagnostic accuracy. However, because of duplicate exposure, this comes at the cost of an augmented radiation dose. This undesired adverse impact can be avoided by using synthesised 2D images reconstructed from the DBT data (s2D)...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29748869/classification-of-breast-masses-using-a-computer-aided-diagnosis-scheme-of-contrast-enhanced-digital-mammograms
#5
Gopichandh Danala, Bhavika Patel, Faranak Aghaei, Morteza Heidari, Jing Li, Teresa Wu, Bin Zheng
Contrast-enhanced digital mammography (CEDM) is a promising imaging modality in breast cancer diagnosis. This study aims to investigate how to optimally develop a computer-aided diagnosis (CAD) scheme of CEDM images to classify breast masses. A CEDM dataset of 111 patients was assembled, which includes 33 benign and 78 malignant cases. Each CEDM includes two types of images namely, low energy (LE) and dual-energy subtracted (DES) images. A CAD scheme was applied to segment mass regions depicting on LE and DES images separately...
May 10, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29743735/suspicious-amorphous-microcalcifications-detected-on-full-field-digital-mammography-correlation-with-histopathology
#6
Vera Christina Camargo de Siqueira Ferreira, Elba Cristina Sá de Camargo Etchebehere, José Luiz Barbosa Bevilacqua, Nestor de Barros
Objective: To evaluate suspicious amorphous calcifications diagnosed on full-field digital mammography (FFDM) and establish correlations with histopathology findings. Materials and Methods: This was a retrospective study of 78 suspicious amorphous calcifications (all classified as BI-RADS® 4) detected on FFDM. Vacuum-assisted breast biopsy (VABB) was performed. The histopathological classification of VABB core samples was as follows: pB2 (benign); pB3 (uncertain malignant potential); pB4 (suspicion of malignancy); and pB5 (malignant)...
March 2018: Radiologia Brasileira
https://www.readbyqxmd.com/read/29730729/incorporation-of-the-technologist-s-opinion-for-arbitration-of-discrepant-assessments-among-radiologists-at-screening-mammography
#7
Angela M P Coolen, Joost R C Lameijer, Adri C Voogd, Luc J Strobbe, Marieke W J Louwman, Vivianne C G Tjan-Heijnen, Lucien E M Duijm
PURPOSE: We determined whether the addition of the technologist's opinion may be helpful in deciding if discordant readings at blinded double reading should be recalled. METHODS: A consecutive series of 99,013 digital screening mammograms, obtained between July 2013 and January 2015, were included. All mammograms were first interpreted by a technologist and then double read in a blinded fashion by a team of 13 screening radiologists. All concordant and discordant positive readings among radiologists were recalled...
May 5, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29729855/addressing-potential-health-disparities-in-the-adoption-of-advanced-breast-imaging-technologies
#8
REVIEW
Randy C Miles, Tracy Onega, Christoph I Lee
With the advent of new screening technologies, including digital breast tomosynthesis, screening ultrasound, and breast magnetic resonance imaging, there is growing concern that existing disparities among traditionally underserved populations will worsen. These newer screening modalities purport improved cancer detection over mammography alone but are not offered at all screening facilities and often require a larger co-pay or out-of-pocket expense. Thus, the potential for worsening disparities with regard to access and appropriate utilization of supplemental screening technologies exists...
May 2018: Academic Radiology
https://www.readbyqxmd.com/read/29728249/false-positive-reduction-in-computer-aided-mass-detection-using-mammographic-texture-analysis-and-classification
#9
Sami Dhahbi, Walid Barhoumi, Jaroslaw Kurek, Bartosz Swiderski, Michal Kruk, Ezzeddine Zagrouba
BACKGROUND AND OBJECTIVE: The aim of computer-aided-detection (CAD) systems for mammograms is to assist radiologists by marking region of interest (ROIs) depicting abnormalities. However, the confusing appearance of some normal tissues that visually look like masses results in a large proportion of marked ROIs with normal tissues. This paper copes with this problem and proposes a framework to reduce false positive masses detected by CAD. METHODS: To avoid the error induced by the segmentation step, we proposed a segmentation-free framework with particular attention to improve feature extraction and classification steps...
July 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29728229/quality-controls-in-digital-mammography-protocol-of-the-efomp-mammo-working-group
#10
Gisella Gennaro, Simona Avramova-Cholakova, Andrea Azzalini, Maria Luisa Chapel, Margarita Chevalier, Olivera Ciraj, Hugo de Las Heras, Vesna Gershan, Bengt Hemdal, Elizabeth Keavey, Nico Lanconelli, Susanne Menhart, Màrio João Fartaria, Ana Pascoal, Kristin Pedersen, Stefano Rivetti, Veronica Rossetti, Friedrich Semturs, Peter Sharp, Alberto Torresin
This article aims to present the protocol on Quality Controls in Digital Mammography published online in 2015 by the European Federation of Organisations for Medical Physics (EFOMP) which was developed by a Task Force under the Mammo Working Group. The main objective of this protocol was to define a minimum set of easily implemented quality control tests on digital mammography systems that can be used to assure the performance of a system within a set and acceptable range. Detailed step-by-step instructions have been provided, limiting as much as possible any misinterpretations or variations by the person performing...
April 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29724433/the-effect-of-the-addition-of-tomosynthesis-to-digital-mammography-on-reader-recall-rate-and-reader-confidence-in-the-uk-prevalent-screening-round
#11
N Upadhyay, N Soneji, V Stewart, G Ralleigh
AIM: To compare reader recall rate and confidence associated with recall decisions for digital mammography (DM) alone with DM plus digital breast tomosynthesis (DBT) in the prevalent screening round. MATERIALS AND METHODS: Following regional ethics committee approval and written informed consent from all participating women, DM and DBT were obtained. DM followed by the combination of DM plus DBT were reviewed retrospectively by one of nine radiologists, for 880 women aged between 46 and 53...
April 30, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29724416/acr-appropriateness-criteria-%C3%A2-breast-implant-evaluation
#12
Ana P Lourenco, Linda Moy, Paul Baron, Aarati D Didwania, Roberta M diFlorio, Samantha L Heller, Anna I Holbrook, Alana A Lewin, Tejas S Mehta, Bethany L Niell, Priscilla J Slanetz, Ashley R Stuckey, Daymen S Tuscano, Nina S Vincoff, Susan P Weinstein, Mary S Newell
Breast implant imaging varies depending on patient age, implant type, and symptoms. For asymptomatic patients (any age, any implant), imaging is not recommended. Rupture of saline implants is often clinically evident, as the saline is resorbed and there is a change in breast contour. With saline implants and equivocal clinical findings, ultrasound (US) is the examination of choice for patients less than 30 years of age, either mammography/digital breast tomosynthesis or US may be used for those 30 to 39 years of age, and mammography/digital breast tomosynthesis is used for those 40 years and older...
May 2018: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29723846/diagnostic-value-of-nineteen-different-imaging-methods-for-patients-with-breast-cancer-a-network-meta-analysis
#13
Xiao-Hong Zhang, Can Xiao
BACKGROUND/AIMS: We performed a network meta-analysis (NMA) to investigate and compare the diagnostic value of 19 different imaging methods used for breast cancer (BC). METHODS: Cochrane Library, PubMed and EMBASE were searched to collect the relevant literature from the inception of the study until November 2016. A combination of direct and indirect comparisons was performed using an NMA to evaluate the combined odd ratios (OR) and draw the surface under the cumulative ranking curves (SUCRA) of the diagnostic value of different imaging methods for BC...
April 28, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29723697/an-exploratory-radiomics-analysis-on-digital-breast-tomosynthesis-in-women-with-mammographically-negative-dense-breasts
#14
Alberto Stefano Tagliafico, Francesca Valdora, Giovanna Mariscotti, Maunela Durando, Jacopo Nori, Daniele La Forgia, Ilan Rosenberg, Francesca Caumo, Nicoletta Gandolfo, Nehmat Houssami, Massimo Calabrese
PURPOSE: To compare Digital Breast Tomosynthesis (DBT) for cancers and normal screens in women with dense breasts and negative mammography using a Radiomics approach. MATERIALS AND METHODS: A substudy (N = 40) of the 'Adjunct Screening With Tomosynthesis or Ultrasound in Women With Mammography-Negative Dense Breasts (ASTOUND)' trial was done based on 20 women who had DBT-detected, histology-proven, breast cancer and 20 controls matched for age and density. Using a Radiomics approach normal and pathological breast parenchyma were evaluated, and correlations among Radiomics features and clinical and prognostic parameters were investigated...
April 30, 2018: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/29720220/the-combined-effect-of-mammographic-texture-and-density-on-breast-cancer-risk-a-cohort-study
#15
Johanna O P Wanders, Carla H van Gils, Nico Karssemeijer, Katharina Holland, Michiel Kallenberg, Petra H M Peeters, Mads Nielsen, Martin Lillholm
BACKGROUND: Texture patterns have been shown to improve breast cancer risk segregation in addition to area-based mammographic density. The additional value of texture pattern scores on top of volumetric mammographic density measures in a large screening cohort has never been studied. METHODS: Volumetric mammographic density and texture pattern scores were assessed automatically for the first available digital mammography (DM) screening examination of 51,400 women (50-75 years of age) participating in the Dutch biennial breast cancer screening program between 2003 and 2011...
May 2, 2018: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/29710124/automated-and-clinical-breast-imaging-reporting-and-data-system-density-measures-predict-risk-of-screen-detected-and-interval-cancers
#16
Karla Kerlikowske, Christopher G Scott, Amir P Mahmoudzadeh, Lin Ma, Stacey Winham, Matthew R Jensen, Fang Fang Wu, Serghei Malkov, V Shane Pankratz, Steven R Cummings, John A Shepherd, Kathleen R Brandt, Diana L Miglioretti, Celine M Vachon
Background: In 30 states, women who have had screening mammography are informed of their breast density on the basis of Breast Imaging Reporting and Data System (BI-RADS) density categories estimated subjectively by radiologists. Variation in these clinical categories across and within radiologists has led to discussion about whether automated BI-RADS density should be reported instead. Objective: To determine whether breast cancer risk and detection are similar for automated and clinical BI-RADS density measures...
May 1, 2018: Annals of Internal Medicine
https://www.readbyqxmd.com/read/29705184/homogeneous-vs-patient-specific-breast-models-for-monte-carlo-evaluation-of-mean-glandular-dose-in-mammography
#17
A Sarno, G Mettivier, F Di Lillo, K Bliznakova, I Sechopoulos, P Russo
PURPOSE: To compare, via Monte Carlo simulations, homogeneous and non-homogenous breast models adopted for mean glandular dose (MGD) estimates in mammography vs. patient specific digital breast phantoms. METHODS: We developed a GEANT4 Monte Carlo code simulating four homogenous cylindrical breast models featured as follows: (1) semi-cylindrical section enveloped in a 5-mm adipose layer; (2) semi-elliptical section with a 4-mm thick skin; (3) semi-cylindrical section with a 1...
April 25, 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29697059/toward-minimizing-annotation-work-diagnosis-of-mammographic-masses-via-active-learning
#18
Yu Zhao, Jingyang Zhang, Hongzhi Xie, Shuyang Zhang, Lixu Gu
The prerequisite for establishing an effective prediction system for mammographic diagnosis is the annotation of each mammographic images. The manual annotation work is time-consuming and laborious, which becomes a great hindrance for the researchers. In this article, we propose a novel active learning algorithm that can adequately address this problem, leading to minimization of the labeling costs on the premise of guaranteed performance. 
 Methods: Different from the existing active learning methods designed for general problem, our proposed method is specifically designed for mammographic images...
April 26, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29692539/comparing-the-diagnostic-efficacy-of-full-field-digital-mammography-with-digital-breast-tomosynthesis-using-birads-score-in-a-tertiary-cancer-care-hospital
#19
Divya Singla, Arvind K Chaturvedi, Abhinav Aggarwal, S A Rao, Dibyamohan Hazarika, Vivek Mahawar
Introduction: Breast cancer is one of the leading cancers in females worldwide, and its incidence has been rising at an exponential pace in the last 10 years even in India. Mammography has been the mainstay for detection of breast cancer over decades and has gradually advanced from screen film to full-field digital mammography. Recently, tomosynthesis has evolved as an advanced imaging investigation for early diagnosis of breast lesions in both diagnostic and screening settings. Aim of Study: To compare and evaluate the impact of digital breast tomosynthesis (DBT) compared to full-field digital mammography (FFDM) in the interpretation of BIRADS score in both diagnostic and screening settings...
January 2018: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29691123/a-computer-aided-detection-of-the-architectural-distortion-in-digital-mammograms-using-the-fractal-dimension-measurements-of-bemd
#20
Imad Zyout, Roberto Togneri
Achieving a high performance for the detection and characterization of architectural distortion in screening mammograms is important for an efficient breast cancer early detection. Viewing a mammogram image as a rough surface that can be described using the fractal theory is a well-recognized approach. This paper presents a new fractal-based computer-aided detection (CAD) algorithm for characterizing various breast tissues in screening mammograms with a particular focus on distinguishing between architectural distortion and normal breast parenchyma...
April 3, 2018: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
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