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Digital breast tomosynthesis

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https://www.readbyqxmd.com/read/28932361/imaging-of-the-treated-breast-post-breast-conservation-surgery-oncoplasty-pictorial-review
#1
REVIEW
Subhash K Ramani, Ashita Rastogi, Abhishek Mahajan, Nita Nair, Tanuja Shet, Meenakshi H Thakur
Mammographic appearance of the normal breast is altered in the post-operative setting. It is essential to be aware of the normal findings as well as to identify features of recurrent disease with particular emphasis on radiological-pathological concordance. Digital breast tomosynthesis and volumetric breast density add incremental value in this clinical setting. We present a pictorial review of various cases to illustrate normal post-operative findings as well as mammographic features suspicious for recurrent disease...
August 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28929809/can-breast-compression-be-reduced-in-digital-mammography-and-breast-tomosynthesis
#2
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
#3
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
#4
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/28901614/investigating-simulation-based-metrics-for-characterizing-linear-iterative-reconstruction-in-digital-breast-tomosynthesis
#5
Sean D Rose, Adrian A Sanchez, Emil Y Sidky, Xiaochuan Pan
PURPOSE: Simulation-based image quality metrics are adapted and investigated for characterizing the parameter dependences of linear iterative image reconstruction for DBT. METHODS: Three metrics based on a 2D DBT simulation are investigated: (1) a root-mean-square-error (RMSE) between the test phantom and reconstructed image, (2) a gradient RMSE where the comparison is made after taking a spatial gradient of both image and phantom, and (3) a region-of-interest (ROI) Hotelling observer (HO) for signal-known-exactly/background-known-exactly (SKE/BKE) and signal-known-exactly/background-known-statistically (SKE/BKS) detection tasks...
September 2017: Medical Physics
https://www.readbyqxmd.com/read/28898193/molecular-breast-imaging-in-breast-cancer-screening-and-problem-solving
#6
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/28881266/lesion-localization-using-the-scroll-bar-on-tomosynthesis-why-doesn-t-it-always-work
#7
REVIEW
Sarah M Friedewald, Victoria A Young, Dipti Gupta
The scroll bar on digital breast tomosynthesis (DBT) is an important tool that facilitates localization of lesions on the orthogonal view. While this works well most of the time, occasionally the location of the lesion as directed by the scroll bar is seemingly inaccurate. There are five important reasons why the scroll bar indicator may suggest a contradictory lesion location. Understanding specific scenarios when this may occur will aid the reader in reconciling these differences.
July 29, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28871810/mammography-positioning-standards-in-the-digital-era-is-the-status-quo-acceptable
#8
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
#9
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/28834445/biologic-profiles-of-invasive-breast-cancers-detected-only-with-digital-breast-tomosynthesis
#10
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
#11
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/28832336/improving-image-quality-for-digital-breast-tomosynthesis-an-automated-detection-and-diffusion-based-method-for-metal-artifact-reduction
#12
Yao Lu, Heang-Ping Chan, Jun Wei, Lubomir M Hadjiiski, Ravi K Samala
In digital breast tomosynthesis (DBT), the high-attenuation metallic clips marking a previous biopsy site in the breast cause errors in the estimation of attenuation along the ray paths intersecting the markers during reconstruction, which result in interplane and inplane artifacts obscuring the visibility of subtle lesions. We proposed a new metal artifact reduction (MAR) method to improve image quality. Our method uses automatic detection and segmentation to generate a marker location map for each projection (PV)...
September 15, 2017: Physics in Medicine and Biology
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/28783629/low-dose-contrast-enhanced-breast-ct-using-spectral-shaping-filters-an-experimental-study
#17
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/28780702/clinical-implementation-of-synthesized-mammography-with-digital-breast-tomosynthesis-in-a-routine-clinical-practice
#18
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
https://www.readbyqxmd.com/read/28767366/detector-blur-and-correlated-noise-modeling-for-digital-breast-tomosynthesis-reconstruction
#19
Jiabei Zheng, Jeffrey A Fessler, Heang-Ping Chan
This paper describes a new image reconstruction method for digital breast tomosynthesis (DBT). The new method incorporates detector blur into the forward model. The detector blur in DBT causes correlation in the measurement noise. By making a few approximations that are reasonable for breast imaging, we formulated a regularized quadratic optimization problem with a data-fit term that incorporates models for detector blur and correlated noise (DBCN). We derived a computationally efficient separable quadratic surrogate (SQS) algorithm to solve the optimization problem that has a non-diagonal noise covariance matrix...
July 27, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28760363/strategies-for-decreasing-screening-mammography-recall-rates-while-maintaining-performance-metrics
#20
Lisa A Mullen, Babita Panigrahi, Jacqueline Hollada, Benita Panigrahi, Eniola T Falomo, Susan C Harvey
RATIONALE AND OBJECTIVE: This study aimed to determine the impact of interventions designed to reduce screening mammography recall rates on screening performance metrics. MATERIALS AND METHODS: We assessed baseline performance for full-field digital mammography (FFDM) and digital breast tomosynthesis mammography (DBT) for a 3-year period before intervention. The first intervention sought to increase awareness of recalls from screening mammography. Breast imagers discussed their perceptions regarding screening recalls and were required to review their own recalled cases, including outcomes of diagnostic evaluation and biopsy...
July 28, 2017: Academic Radiology
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