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Digital breast tomosynthesis

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https://www.readbyqxmd.com/read/28812190/diagnostic-value-of-the-stand-alone-synthetic-image-in-digital-breast-tomosynthesis-examinations
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28750846/patient-financial-responsibility-reduces-use-of-digital-breast-tomosynthesis-screening%C3%A2-mammography
#7
Emily L Sedgwick, Ana P Benveniste, Frederick J Severs, Lilian O Ebuoma, Tamara Ortiz-Perez, Ashley A Roark, Kenny Sam, Arti Jonna, Karla A Sepulveda
No abstract text is available yet for this article.
July 24, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28731809/reply-to-digital-breast-tomosynthesis-assists-in-differentiating-vascular-calcification-from-malignant-calcification
#8
Regina J Hooley, Liane E Philpotts
No abstract text is available yet for this article.
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28731806/digital-breast-tomosynthesis-assists-in-differentiating-vascular-calcification-from-malignant-calcification
#9
Yamin Cohen
No abstract text is available yet for this article.
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28716454/a-randomised-trial-of-screening-with-digital-breast-tomosynthesis-plus-conventional-digital-2d-mammography-versus-2d-mammography-alone-in-younger-higher-risk-women
#10
Anthony J Maxwell, Michael Michell, Yit Y Lim, Susan M Astley, Mary Wilson, Emma Hurley, D Gareth Evans, Anthony Howell, Asif Iqbal, John Kotre, Stephen Duffy, Julie Morris
INTRODUCTION: Digital breast tomosynthesis (DBT) has been shown to increase invasive cancer detection rates at screening compared to full field digital (2D) mammography alone, and some studies have reported a reduction in the screening recall rate. No prospective randomised studies of DBT have previously been published. This study compares recall rates with 2D mammography with and without concurrent DBT in women in their forties with a family history of breast cancer undergoing incident screening...
June 30, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28715278/bi-rads-category-3-comparison-probably-benign-category-after-recall-from-screening-before-and-after-implementation-of-digital-breast-tomosynthesis
#11
Elizabeth S McDonald, Anne Marie McCarthy, Susan P Weinstein, Mitchell D Schnall, Emily F Conant
Purpose To evaluate Breast Imaging Reporting and Data System (BI-RADS) category 3 assessment at diagnostic examination after recall from screening in a large urban population after implementation of digital breast tomosynthesis (DBT) by focusing both on overall use and use stratified by recalled finding type and outcome at 2 years. Materials and Methods This was an intuitional review board-approved and HIPAA-compliant retrospective review of 10 728 digital mammography (DM) examinations from September 1, 2010, to August 30, 2011, and 15 571 screening DBT examinations from October 1, 2011, to February 28, 2013...
July 17, 2017: Radiology
https://www.readbyqxmd.com/read/28713173/a-standard-mammography-unit-standard-3d-ultrasound-probe-fusion-prototype-first-results
#12
Rüdiger Schulz-Wendtland, Sebastian M Jud, Peter A Fasching, Arndt Hartmann, Marcus Radicke, Claudia Rauh, Michael Uder, Marius Wunderle, Paul Gass, Hanna Langemann, Matthias W Beckmann, Julius Emons
AIM: The combination of different imaging modalities through the use of fusion devices promises significant diagnostic improvement for breast pathology. The aim of this study was to evaluate image quality and clinical feasibility of a prototype fusion device (fusion prototype) constructed from a standard tomosynthesis mammography unit and a standard 3D ultrasound probe using a new method of breast compression. MATERIALS AND METHODS: Imaging was performed on 5 mastectomy specimens from patients with confirmed DCIS or invasive carcinoma (BI-RADS (™) 6)...
June 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28710582/comparison-of-digital-mammography-and-digital-breast-tomosynthesis-in-the-detection-of-architectural-distortion
#13
Elizabeth H Dibble, Ana P Lourenco, Grayson L Baird, Robert C Ward, A Stanley Maynard, Martha B Mainiero
OBJECTIVES: To compare interobserver variability (IOV), reader confidence, and sensitivity/specificity in detecting architectural distortion (AD) on digital mammography (DM) versus digital breast tomosynthesis (DBT). METHODS: This IRB-approved, HIPAA-compliant reader study used a counterbalanced experimental design. We searched radiology reports for AD on screening mammograms from 5 March 2012-27 November 2013. Cases were consensus-reviewed. Controls were selected from demographically matched non-AD examinations...
July 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28707529/interpretation-of-digital-breast-tomosynthesis-preliminary-study-on-comparison-with-picture-archiving-and-communication-system-pacs-and-dedicated-workstation
#14
Young Seon Kim, Jung Min Chang, Ann Yi, Sung Ui Shin, Myung Eun Lee, Won Hwa Kim, Nariya Cho, Woo Kyung Moon
OBJECTIVES: To compare the diagnostic accuracy and efficiency in the interpretation of digital breast tomosynthesis (DBT) images using picture archiving and communication system (PACS) and a dedicated workstation. METHODS: A total of 97 DBT images performed for screening or diagnostic purposes were stored in both a workstation and PACS, and evaluated in combination with digital mammography by three independent radiologists retrospectively. Breast Imaging Reporting and Data System final assessments and likelihood of malignancy (%) were assigned and the interpretation time when using the workstation and PACS was recorded...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28696192/breast-cancer-screening-does-tomosynthesis-augment-mammography
#15
REVIEW
Traci A Takahashi, Christoph I Lee, Kay M Johnson
Digital breast tomosynthesis (DBT) is a relatively new imaging technology that is being adopted widely for breast cancer screening. Initial evidence suggests that it may reduce recall rates and increase cancer detection rates when added to digital mammography screening. However, more rigorous, prospective studies are needed to determine whether it improves long-term clinical outcomes of breast cancer screening.
July 2017: Cleveland Clinic Journal of Medicine
https://www.readbyqxmd.com/read/28668424/digital-breast-tomosynthesis-versus-full-field-digital-mammography-which-modality-provides-more-accurate-prediction-of-margin-status-in-specimen-radiography
#16
Heba A Amer, Florian Schmitzberger, Barbara Ingold-Heppner, Julia Kussmaul, Manal F El Tohamy, Hazim I Tantawy, B Hamm, M Makowski, Eva M Fallenberg
OBJECTIVES: To evaluate the reliability of tumor margin assessment in specimen radiography (SR) using digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM) in comparison to postoperative histopathology margin status as the gold standard. METHODS: After ethics committee approval, 102 consecutive patients who underwent breast conservative surgery for nonpalpable proven breast cancer were prospectively included. All patients underwent ultrasound/mammography-guided wire localization of their lesions...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28666725/implementation-of-upright-digital-breast-tomosynthesis-guided-stereotactic-biopsy
#17
Toma S Omofoye, Sarah Martaindale, Davis C Teichgraeber, Jay R Parikh
With growing adoption of digital breast tomosynthesis, an increasing number of imaging abnormalities are being identified only by tomosynthesis. Upright digital breast tomosynthesis-guided stereotactic biopsy is a proven method for sampling these abnormalities as well as abnormalities traditionally evaluated using conventional stereotactic biopsy. In this article, we describe the technique of upright digital breast tomosynthesis-guided stereotactic biopsy and outline a systematic operational approach to implementation of this technique in clinical radiology practices...
June 27, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28666723/the-reproducibility-of-changes-in-diagnostic-figures-of-merit-across-laboratory-and-clinical-imaging-reader-studies
#18
Frank W Samuelson, Craig K Abbey
RATIONALE AND OBJECTIVES: In this paper we examine which comparisons of reading performance between diagnostic imaging systems made in controlled retrospective laboratory studies may be representative of what we observe in later clinical studies. The change in a meaningful diagnostic figure of merit between two diagnostic modalities should be qualitatively or quantitatively comparable across all kinds of studies. MATERIALS AND METHODS: In this meta-study we examine the reproducibility of relative measures of sensitivity, false positive fraction (FPF), area under the receiver operating characteristic (ROC) curve, and expected utility across laboratory and observational clinical studies for several different breast imaging modalities, including screen film mammography, digital mammography, breast tomosynthesis, and ultrasound...
June 27, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28647388/characterization-of-breast-masses-in-digital-breast-tomosynthesis-and-digital-mammograms-an-observer-performance-study
#19
Heang-Ping Chan, Mark A Helvie, Lubomir Hadjiiski, Deborah O Jeffries, Katherine A Klein, Colleen H Neal, Mitra Noroozian, Chintana Paramagul, Marilyn A Roubidoux
RATIONALE AND OBJECTIVES: This study aimed to compare Breast Imaging Reporting and Data System (BI-RADS) assessment of lesions in two-view digital mammogram (DM) to two-view wide-angle digital breast tomosynthesis (DBT) without DM. MATERIALS AND METHODS: With Institutional Review Board approval and written informed consent, two-view DBTs were acquired from 134 subjects and the corresponding DMs were collected retrospectively. The study included 125 subjects with 61 malignant (size: 3...
June 21, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28643094/accuracy-and-reading-time-for-six-strategies-using-digital-breast-tomosynthesis-in-women-with-mammographically-negative-dense-breasts
#20
Alberto Stefano Tagliafico, Massimo Calabrese, Bianca Bignotti, Alessio Signori, Erica Fisci, Federica Rossi, Francesca Valdora, Nehmat Houssami
OBJECTIVE: To compare six strategies using digital breast tomosynthesis in women with mammographically negative dense breasts. MATERIALS AND METHODS: This is a substudy of the 'ASTOUND' trial. 163 women who underwent tomosynthesis with synthetically reconstructed projection images (S-2D) inclusive of 13 (7.9%) cases diagnosed with breast cancer at histopathology after surgery were evaluated. Accuracy measures and screen-reading time of six reading strategies were assessed: (A) Single reading of S-2D alone, (B) single reading of tomosynthesis alone, (C) single reading of joint interpretation of tomosynthesis + S-2D, (D) double-reading of S-2D alone, (E) double reading of tomosynthesis alone, (F) double reading of joint interpretation of tomosynthesis + S-2D...
June 22, 2017: European Radiology
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