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Digital mammography

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https://www.readbyqxmd.com/read/28929809/can-breast-compression-be-reduced-in-digital-mammography-and-breast-tomosynthesis
#1
Greeshma A Agasthya, Ellen D'Orsi, Yoon-Jin Kim, Priyanka Handa, Christopher P Ho, Carl J D'Orsi, Ioannis Sechopoulos
OBJECTIVE: The objective of this study was to investigate the impact of decreasing breast compression during digital mammography and breast tomosynthesis (DBT) on perceived pain and image quality. MATERIALS AND METHODS: In this two-part study, two groups of women with prior mammograms were recruited. In part 1, subjects were positioned for craniocaudal (CC) and mediolateral oblique (MLO) views, and four levels of compression force were applied to evaluate changes in breast thickness, perceived pain, and relative tissue coverage...
September 20, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28929783/use-of-single-view-digital-breast-tomosynthesis-dbt-and-ultrasound-vs-additional-views-and-ultrasound-for-the-assessment-of-screen-detected-abnormalities-german-multi-reader-study
#2
Sylvia H Heywang-Köbrunner, Astrid Hacker, Alexander Jänsch, Ronald Kates, Sabina Wulz-Horber
Background Data on the value of digital breast tomosynthesis (DBT) for further assessment of screen-detected lesions are still limited. Purpose To compare screening mammography, single-view DBT and ultrasound-information (TS) vs. screening mammography, additional views and ultrasound-information (AV) for assessment of screen-detected abnormalities. Material and Methods The use of wide-angle DBT for screen-detected, soft-tissue abnormalities requiring additional views was investigated: 241 cases (206 benign and 35 malignant lesions), verified by histology or two-year follow-up, were read by ten readers as TS and as AV sets, yielding 2410 diagnoses for each set...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28914430/position-paper-recommendations-for-a-digital-mammography-quality-assurance-program%C3%A2-v4-0
#3
J C P Heggie, P Barnes, L Cartwright, J Diffey, J Tse, J Herley, I D McLean, F J Thomson, R K Grewal, L T Collins
In 2001 the ACPSEM published a position paper on quality assurance in screen film mammography which was subsequently adopted as a basis for the quality assurance programs of both the Royal Australian and New Zealand College of Radiologists (RANZCR) and of BreastScreen Australia. Since then the clinical implementation of digital mammography has been realised and it has become evident that existing screen-film protocols were not appropriate to assure the required image quality needed for reliable diagnosis or to address the new dose implications resulting from digital technology...
September 15, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28898193/molecular-breast-imaging-in-breast-cancer-screening-and-problem-solving
#4
Robin B Shermis, Roberta E Redfern, Jessica Burns, Haris Kudrolli
In the United States, legislative actions in over 28 states require radiologists to notify women who undergo breast screening mammography of their breast density. This has led to increased public interest in supplemental screening, but radiologists have not come to a consensus on a supplemental screening modality. In choosing between the most common options, whole-breast ultrasonography (US) and magnetic resonance (MR) imaging, one must weigh the benefits and drawbacks of each modality, as increased cancer detection may be accompanied by increased examination costs and biopsy rates...
September 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28894329/accuracy-of-contrast-enhanced-spectral-mammography-for-estimating-residual-tumor-size-after-neoadjuvant-chemotherapy-in-patients-with-breast-cancer-a-feasibility-study
#5
Filipe Ramos Barra, Fernanda Freire de Souza, Rosimara Eva Ferreira Almeida Camelo, Andrea Campos de Oliveira Ribeiro, Luciano Farage
OBJECTIVE: To assess the feasibility of contrast-enhanced spectral mammography (CESM) of the breast for assessing the size of residual tumors after neoadjuvant chemotherapy (NAC). MATERIALS AND METHODS: In breast cancer patients who underwent NAC between 2011 and 2013, we evaluated residual tumor measurements obtained with CESM and full-field digital mammography (FFDM). We determined the concordance between the methods, as well as their level of agreement with the pathology...
July 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28871810/mammography-positioning-standards-in-the-digital-era-is-the-status-quo-acceptable
#6
Ashley I Huppe, Kelly L Overman, Jason B Gatewood, Jacqueline D Hill, Louise C Miller, Marc F Inciardi
OBJECTIVE: The objective of our study was to evaluate positioning of full-field digital mammography (FFDM) and digital breast tomosynthesis (DBT) compared with film-screen (FS) mammography positioning standards. MATERIALS AND METHODS: A retrospective study was conducted of consecutive patients who underwent screening FFDM in 2010-2012 and DBT in 2012-2013 at an academic institution. Examinations were performed by five experienced technologists who underwent updated standardized positioning training...
September 5, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28870962/value-of-additional-digital-breast-tomosynthesis-for-preoperative-staging-of-breast-cancer-in-dense-breasts
#7
Julia Krammer, Kathrin Stepniewski, Clemens G Kaiser, Joachim Brade, Philipp Riffel, Stefan O Schoenberg, Klaus Wasser
AIM: This retrospective study was initiated to determine the diagnostic value of additional preoperative breast tomosynthesis (DBT) for breast cancer staging in dense breasts. PATIENTS AND METHODS: Sixty-six patients (69 breasts) with findings of American College of Radiology category 3 or 4 with Breast Imaging Reporting and Data System 5, 6 or 0 were included. All patients underwent digital mammography and additional DBT. RESULTS: A total of 40/69 (58%) cancers were detected on both mammography and DBT, 23 (33...
September 2017: Anticancer Research
https://www.readbyqxmd.com/read/28870431/could-parenchymal-enhancement-on-contrast-enhanced-spectral-mammography-cesm-represent-a-new-breast-cancer-risk-factor-correlation-with-known-radiology-risk-factors
#8
S L Savaridas, D B Taylor, D Gunawardana, M Phillips
AIM: To compare background parenchymal enhancement (BPE) on contrast-enhanced (CE) spectral mammography (CESM) with CE magnetic resonance imaging (MRI), and evaluate how these relate to hormonal status, mammographic breast density (MBD) and MRI fibroglandular tissue volume (FGTV). METHODS AND MATERIALS: Between June 2012 to October 2015, participants in a cancer staging study underwent full-field digital mammography (FFDM), CEMRI, and CESM. Two readers independently rated FGTV, MBD, and BPE using the Breast Imaging-Reporting and Data System (BI-RADS) criteria...
September 1, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28870087/impact-on-dose-and-image-quality-of-a-software-based-scatter-correction-in-mammography
#9
Teresa Monserrat, Elena Prieto, Benigno Barbés, Luis Pina, Arlette Elizalde, Belén Fernández
Background In 2014, Siemens developed a new software-based scatter correction (Progressive Reconstruction Intelligently Minimizing Exposure [PRIME]), enabling grid-less digital mammography. Purpose To compare doses and image quality between PRIME (grid-less) and standard (with anti-scatter grid) modes. Material and Methods Contrast-to-noise ratio (CNR) was measured for various polymethylmethacrylate (PMMA) thicknesses and dose values provided by the mammograph were recorded. CDMAM phantom images were acquired for various PMMA thicknesses and inverse Image Quality Figure (IQFinv) was calculated...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28845078/impact-of-different-study-populations-on-reader-behavior-and-performance-metrics-initial-results
#10
Brandon D Gallas, Etta Pisano, Elodia Cole, Kyle Myers
The FDA recently completed a study on design methodologies surrounding the Validation of Imaging Premarket Evaluation and Regulation called VIPER. VIPER consisted of five large reader sub-studies to compare the impact of different study populations on reader behavior as seen by sensitivity, specificity, and AUC, the area under the ROC curve (receiver operating characteristic curve). The study investigated different prevalence levels and two kinds of sampling of non-cancer patients: a screening population and a challenge population...
2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28834445/biologic-profiles-of-invasive-breast-cancers-detected-only-with-digital-breast-tomosynthesis
#11
Jin You Kim, Hyun Jung Kang, Jong Ki Shin, Nam Kyung Lee, You Seon Song, Kyung Jin Nam, Ki Seok Choo
OBJECTIVE: The purpose of this study was to analyze the clinicopathologic and immunohistochemical features of invasive breast cancers detected only with digital breast tomosynthesis (DBT), compared with those of cancers detected with both DBT and full-field digital mammography (FFDM). MATERIALS AND METHODS: The medical records of 261 women (108 without and 153 with symptoms) with invasive breast cancers who underwent FFDM and DBT between April 2015 and June 2016 were retrospectively reviewed...
August 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28834441/pathologic-outcomes-of-architectural-distortion-on-digital-2d-versus-tomosynthesis-mammography
#12
Manisha Bahl, Leslie R Lamb, Constance D Lehman
OBJECTIVE: The purpose of this study is to compare the risk of malignancy associated with architectural distortion detected on 2D digital mammography (DM) versus digital breast tomosynthesis (DBT). MATERIALS AND METHODS: We performed a retrospective review of architectural distortion cases recommended for biopsy from September 2007 to February 2011, the period before DBT integration (hereafter known as the DM group), and from January 2013 to June 2016, the period after DBT integration (hereafter known as the DBT group)...
August 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28819862/radiation-dose-with-digital-breast-tomosynthesis-compared-to-digital-mammography-per-view-analysis
#13
Gisella Gennaro, D Bernardi, N Houssami
OBJECTIVES: To compare radiation dose delivered by digital mammography (FFDM) and breast tomosynthesis (DBT) for a single view. METHODS: 4,780 FFDM and 4,798 DBT images from 1,208 women enrolled in a screening trial were used to ground dose comparison. Raw images were processed by an automatic software to determine volumetric breast density (VBD) and were used together with exposure data to compute the mean glandular dose (MGD) according to Dance's model. DBT and FFDM were compared in terms of operation of the automatic exposure control (AEC) and MGD level...
August 17, 2017: European Radiology
https://www.readbyqxmd.com/read/28819781/comparison-of-synthetic-mammography-reconstructed-from-digital-breast-tomosynthesis-and-digital-mammography-evaluation-of-lesion-conspicuity-and-bi-rads-assessment-categories
#14
Giovanna Mariscotti, Manuela Durando, Nehmat Houssami, Mirella Fasciano, Alberto Tagliafico, Davide Bosco, Cristina Casella, Camilla Bogetti, Laura Bergamasco, Paolo Fonio, Giovanni Gandini
PURPOSE: To compare the interpretive performance of synthetic mammography (SM), reconstructed from digital breast tomosynthesis (DBT), and full-field digital mammography (FFDM) in a diagnostic setting, covering different conditions of breast density and mammographic signs. METHODS: A retrospective analysis was conducted on 231 patients, who underwent FFDM and DBT (from which SM images were reconstructed) between September 2014-September 2015. The study included 250 suspicious breast lesions, all biopsy proven: 148 (59...
August 17, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28812190/diagnostic-value-of-the-stand-alone-synthetic-image-in-digital-breast-tomosynthesis-examinations
#15
Julia Garayoa, Margarita Chevalier, Maria Castillo, Ignacio Mahillo-Fernández, Najim Amallal El Ouahabi, Carmen Estrada, Alejandro Tejerina, Olivia Benitez, Julio Valverde
OBJECTIVE: To demonstrate the non-inferiority of synthetic image (SI) mammography versus full-field digital mammography (FFDM) in breast tomosynthesis (DBT) examinations. METHODS: An observational, retrospective, single-centre, multireader blinded study was performed, using 2384 images to directly compare SI and FFDM based on Breast Imaging Reporting and Data System (BIRADS) categorisation and visibility of radiological findings. Readers had no access to digital breast tomosynthesis slices...
August 15, 2017: European Radiology
https://www.readbyqxmd.com/read/28806573/digital-breast-tomosynthesis-vacuum-assisted-biopsy-for-tomosynthesis-detected-sonographically-occult-lesions
#16
Nikki S Ariaratnam, Sherrill T Little, Markus A Whitley, Kristy Ferguson
PURPOSE: To assess the utility and pathological results from DBT VAB for lesions occult on 2D mammography and breast ultrasound (US). MATERIALS AND METHODS: A retrospective review of 1116 consecutive stereotactic biopsies was performed over 27months. DBT VAB was performed for 38 non-calcified lesions which were solely detected using DBT. Imaging findings and pathology results were reviewed. RESULTS: Pathologic findings were malignant in 8 of 38 lesions [masses (5) and distortion (3)]...
August 5, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28806320/the-value-of-quality-assured-magnetic-resonance-imaging-of-the-breast-for-the-early-detection-of-breast-cancer-in-asymptomatic-women
#17
Uwe Fischer, Susanne Luftner-Nagel, Friedemann Baum, Katharina Marten-Engelke, Susanne Wienbeck
PURPOSE: The aim of this study was to evaluate the exclusive performance of quality-assured high-resolution breast magnetic resonance imaging (MRI) for early detection of breast cancer in a population of asymptomatic women. MATERIALS AND METHODS: A total of 1189 MRI examinations performed in 789 asymptomatic women (mean age, 51.1 years) were evaluated. All examinations were performed using open bilateral surface coil, dedicated compression device, and high spatial resolution (matrix, 512 × 512)...
August 12, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28783629/low-dose-contrast-enhanced-breast-ct-using-spectral-shaping-filters-an-experimental-study
#18
Andrey Makeev, Stephen J Glick
Iodinated contrast-enhanced x-ray imaging of the breast has been studied with various modalities including, fullfield digital mammography (FFDM), digital breast tomosynthesis (DBT), and dedicated breast CT (BCT). Contrast imaging with breast CT has a number of advantages over FFDM and DBT including the lack of breast compression, and generation of fully isotropic, three-dimensional reconstructions. Nonetheless, for breast CT to be considered as a viable tool for routine clinical use, it would be desirable to reduce radiation dose...
August 2, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28780840/-diagnostic-value-of-quantitative-pharmacokinetic-parameters-and-relative-quantitative-pharmacokinetic-parameters-in-breast-lesions-with-dynamic-contrast-enhanced-mri
#19
T T Sun, W H Liu, Y Q Zhang, L H Li, R Wang, Y Y Ye
Objective: To explore the differential between the value of dynamic contrast-enhanced MRI quantitative pharmacokinetic parameters and relative pharmacokinetic quantitative parameters in breast lesions. Methods: Retrospective analysis of 255 patients(262 breast lesions) who was obtained by clinical palpation , ultrasound or full-field digital mammography , and then all lessions were pathologically confirmed in Zhongda Hospital, Southeast University from May 2012 to May 2016. A 3.0 T MRI scanner was used to obtain the quantitative MR pharmacokinetic parameters: volume transfer constant (K(trans)), exchange rate constant (k(ep))and extravascular extracellular volume fraction (V(e))...
August 1, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28780702/clinical-implementation-of-synthesized-mammography-with-digital-breast-tomosynthesis-in-a-routine-clinical-practice
#20
Phoebe E Freer, Joanna Riegert, Laura Eisenmenger, Dominik Ose, Nicole Winkler, Matthew A Stein, Gregory J Stoddard, Rachel Hess
BACKGROUND: Most published studies evaluating digital breast tomosynthesis (DBT) included a separate 2-dimensional full-field digital mammogram (FFDM) for DBT screening protocols, increasing radiation from screening mammography. Synthesized mammography (SM) creates a 2-dimensional image from the DBT source data, and if used in place of FFDM, it reduces radiation of DBT screening. This study evaluated the implementation of SM + DBT in routine screening practice in terms of recall rates, cancer detection rates (CDR), % of minimal cancers, % of node-positive cancers, and positive predictive values (PPV)...
August 5, 2017: Breast Cancer Research and Treatment
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