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Contrast enhanced digital breast tomosynthesis

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https://www.readbyqxmd.com/read/28055247/-staging-of-breast-cancer-and-the-advanced-applications-of-digital-mammogram-what-the-physician-needs-to-know
#1
Maha Hussien Helal, Sahar Mahmoud Mansour, Mai Zaglol, Lamia Adel Salaleldin, Omniya Mokhtar Nada, Marwa Anas Haggag
OBJECTIVE: To study the role of advanced applications of digital mammogram whether contrast enhanced spectral mammography (CESM) or digital breast tomosynthesis (DBT) in the "T" staging of histologically proven breast cancer prior management planning. METHODS: This prospective analysis, we evaluated 98 proved malignant breast masses regarding their size, multiplicity and presence of associated clusters of microcalcifications. Evaluation methods included digital mammography, 3-D tomosynthesis and contrast enhanced spectral mammography...
January 5, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28044312/optimization-of-contrast-enhanced-breast-imaging-analysis-using-a-cascaded-linear-system-model
#2
Yue-Houng Hu, David A Scaduto, Wei Zhao
PURPOSE: Contrast-enhanced (CE) breast imaging involves the injection contrast agents (i.e., iodine) to increase conspicuity of malignant lesions. CE imaging may be used in conjunction with digital mammography (DM) or digital breast tomosynthesis (DBT) and has shown promise in improving diagnostic specificity. Both CE-DM and CE-DBT techniques require optimization as clinical diagnostic tools. Physical factors including x-ray spectra, subtraction technique, and the signal from iodine contrast, must be considered to provide the greatest object detectability and image quality...
November 21, 2016: Medical Physics
https://www.readbyqxmd.com/read/28032909/a-novel-pre-processing-technique-for-improving-image-quality-in-digital-breast-tomosynthesis
#3
Hyeongseok Kim, Taewon Lee, Joonpyo Hong, Sohail Sabir, Jung-Ryun Lee, Young Wook Choi, Hak Hee Kim, Eun Young Chae, Seungryong Cho
PURPOSE: Nonlinear pre-reconstruction processing of the projection data in computed tomography (CT) where accurate recovery of the CT numbers is important for diagnosis is usually discouraged, for such a processing would violate the physics of image formation in CT. However, one can devise a pre-processing step to enhance detectability of lesions in digital breast tomosynthesis (DBT) where accurate recovery of the CT numbers is fundamentally impossible due to the incompleteness of the scanned data...
December 29, 2016: Medical Physics
https://www.readbyqxmd.com/read/27854006/mammography-an-update-of-the-eusobi-recommendations-on-information-for-women
#4
Francesco Sardanelli, Eva M Fallenberg, Paola Clauser, Rubina M Trimboli, Julia Camps-Herrero, Thomas H Helbich, Gabor Forrai
: This article summarises the information to be offered to women about mammography. After a delineation of the aim of early diagnosis of breast cancer, the difference between screening mammography and diagnostic mammography is explained. The need to bring images and reports from the previous mammogram (and from other recent breast imaging examinations) is highlighted. Mammography technique and procedure are described with particular attention to discomfort and pain experienced by a small number of women who undergo the test...
November 16, 2016: Insights Into Imaging
https://www.readbyqxmd.com/read/27600118/-diagnostic-imaging-of-breast-cancer-an-update
#5
M Funke
Advances in imaging of the female breast have substantially influenced the diagnosis and probably also the therapy and prognosis of breast cancer in the past few years. This article gives an overview of the most important imaging modalities in the diagnosis of breast cancer. Digital mammography is considered to be the gold standard for the early detection of breast cancer. Digital breast tomosynthesis can increase the diagnostic accuracy of mammography and is used for the assessment of equivocal or suspicious mammography findings...
October 2016: Der Radiologe
https://www.readbyqxmd.com/read/27406629/mammography-and-mri-for-screening-women-who-underwent-chest-radiation-therapy-lymphoma-survivors-recommendations-for-surveillance-from-the-italian-college-of-breast-radiologists-by-sirm
#6
Giovanna Mariscotti, Paolo Belli, Daniela Bernardi, Beniamino Brancato, Massimo Calabrese, Luca A Carbonaro, Beatrice Cavallo-Marincola, Francesca Caumo, Paola Clauser, Laura Martinchich, Stefania Montemezzi, Pietro Panizza, Federica Pediconi, Alberto Tagliafico, Rubina M Trimboli, Chiara Zuiani, Francesco Sardanelli
Women who underwent chest radiation therapy (CRT) during pediatric/young-adult age (typically, lymphoma survivors) have an increased breast cancer risk, in particular for high doses. The cumulative incidence from 40 to 45 years of age is 13-20 %, similar to that of BRCA mutation carriers for whom contrast-enhanced magnetic resonance imaging (MRI) is recommended. However, in women who underwent CRT, MRI sensitivity is lower (63-80 %) and that of mammography higher (67-70 %) than those observed in women with hereditary predisposition, due to a higher incidence of ductal carcinoma in situ with microcalcifications and low neoangiogenesis...
November 2016: La Radiologia Medica
https://www.readbyqxmd.com/read/27147364/how-does-c-view-image-quality-compare-with-conventional-2d-ffdm
#7
Jeffrey S Nelson, Jered R Wells, Jay A Baker, Ehsan Samei
PURPOSE: The FDA approved the use of digital breast tomosynthesis (DBT) in 2011 as an adjunct to 2D full field digital mammography (FFDM) with the constraint that all DBT acquisitions must be paired with a 2D image to assure adequate interpretative information is provided. Recently manufacturers have developed methods to provide a synthesized 2D image generated from the DBT data with the hope of sparing patients the radiation exposure from the FFDM acquisition. While this much needed alternative effectively reduces the total radiation burden, differences in image quality must also be considered...
May 2016: Medical Physics
https://www.readbyqxmd.com/read/26617206/incorporating-imaging-into-the-locoregional-management-of-breast-cancer
#8
REVIEW
Ana P Lourenco, Martha B Mainiero
Although some breast cancers present as palpable masses or with other clinical findings, many are detected at screening. Most screening is currently done with digital mammography, but high-risk patients or those with dense breast tissue may undergo additional screening examinations with magnetic resonance imaging or ultrasound. Additionally, digital breast tomosynthesis, contrast-enhanced mammography, and molecular breast imaging are newer technologies available at some sites. Optimal usage of breast imaging technologies remains controversial, both in screening and diagnostic settings following a new diagnosis of breast cancer...
January 2016: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/26456307/clinical-evaluation-of-contrast-enhanced-digital-mammography-and-contrast-enhanced-tomosynthesis-comparison-to-contrast-enhanced-breast-mri
#9
COMPARATIVE STUDY
Chen-Pin Chou, John M Lewin, Chia-Ling Chiang, Bao-Hui Hung, Tsung-Lung Yang, Jer-Shyung Huang, Jia-Bin Liao, Huay-Ben Pan
PURPOSE: To compare the diagnostic accuracy of contrast-enhanced digital mammography (CEDM) and contrast-enhanced tomosynthesis (CET) to dynamic contrast enhanced breast MRI (DCE-MRI) using a multireader-multicase study. METHODS: Institutional review board approval and informed consents were obtained. Total 185 patients (mean age 51.3) with BI-RADS 4 or 5 lesions were evaluated before biopsy with mammography, tomosynthesis, CEDM, CET and DCE-MRI. Mediolateral-oblique and cranio-caudal views of the target breast CEDM and CET were acquired at 2 and 4 min after contrast agent injection...
December 2015: European Journal of Radiology
https://www.readbyqxmd.com/read/26383027/comparison-study-of-reconstruction-algorithms-for-prototype-digital-breast-tomosynthesis-using-various-breast-phantoms
#10
COMPARATIVE STUDY
Ye-seul Kim, Hye-suk Park, Haeng-Hwa Lee, Young-Wook Choi, Jae-Gu Choi, Hak Hee Kim, Hee-Joung Kim
Digital breast tomosynthesis (DBT) is a recently developed system for three-dimensional imaging that offers the potential to reduce the false positives of mammography by preventing tissue overlap. Many qualitative evaluations of digital breast tomosynthesis were previously performed by using a phantom with an unrealistic model and with heterogeneous background and noise, which is not representative of real breasts. The purpose of the present work was to compare reconstruction algorithms for DBT by using various breast phantoms; validation was also performed by using patient images...
February 2016: La Radiologia Medica
https://www.readbyqxmd.com/read/26237154/a-scatter-correction-method-for-contrast-enhanced-dual-energy-digital-breast-tomosynthesis
#11
Yihuan Lu, Boyu Peng, Beverly A Lau, Yue-Houng Hu, David A Scaduto, Wei Zhao, Gene Gindi
Contrast-enhanced dual energy digital breast tomosynthesis (CE-DE-DBT) is designed to image iodinated masses while suppressing breast anatomical background. Scatter is a problem, especially for high energy acquisition, in that it causes severe cupping artifact and iodine quantitation errors. We propose a patient specific scatter correction (SC) algorithm for CE-DE-DBT. The empirical algorithm works by interpolating scatter data outside the breast shadow into an estimate within the breast shadow. The interpolated estimate is further improved by operations that use an easily obtainable (from phantoms) table of scatter-to-primary-ratios (SPR)--a single SPR value for each breast thickness and acquisition angle...
August 21, 2015: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/26129008/tu-ef-207-01-introductory-remarks-on-recent-advances-in-breast-imaging
#12
A Karellas
UNLABELLED: Breast imaging technology is advancing on several fronts. In digital mammography, the major technological trend has been on optimization of approaches for performing combined mammography and tomosynthesis using the same system. In parallel, photon-counting slot-scan mammography is now in clinical use and more efforts are directed towards further development of this approach for spectral imaging. Spectral imaging refers to simultaneous acquisition of two or more energy-windowed images...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/26129007/tu-ef-207-04-advances-in-detector-technology-for-breast-tomosynthesis
#13
W Zhao
UNLABELLED: Breast imaging technology is advancing on several fronts. In digital mammography, the major technological trend has been on optimization of approaches for performing combined mammography and tomosynthesis using the same system. In parallel, photon-counting slot-scan mammography is now in clinical use and more efforts are directed towards further development of this approach for spectral imaging. Spectral imaging refers to simultaneous acquisition of two or more energy-windowed images...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/26129005/tu-ef-207-00-advances-in-breast-imaging
#14
(no author information available yet)
UNLABELLED: Breast imaging technology is advancing on several fronts. In digital mammography, the major technological trend has been on optimization of approaches for performing combined mammography and tomosynthesis using the same system. In parallel, photon-counting slot-scan mammography is now in clinical use and more efforts are directed towards further development of this approach for spectral imaging. Spectral imaging refers to simultaneous acquisition of two or more energy-windowed images...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/26129004/tu-ef-207-05-dedicated-cone-beam-breast-ct
#15
S Vedantham
UNLABELLED: Breast imaging technology is advancing on several fronts. In digital mammography, the major technological trend has been on optimization of approaches for performing combined mammography and tomosynthesis using the same system. In parallel, photon-counting slot-scan mammography is now in clinical use and more efforts are directed towards further development of this approach for spectral imaging. Spectral imaging refers to simultaneous acquisition of two or more energy-windowed images...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/26129000/tu-ef-207-02-spectral-mammography-based-on-photon-counting-detectors
#16
S Molloi
UNLABELLED: Breast imaging technology is advancing on several fronts. In digital mammography, the major technological trend has been on optimization of approaches for performing combined mammography and tomosynthesis using the same system. In parallel, photon-counting slot-scan mammography is now in clinical use and more efforts are directed towards further development of this approach for spectral imaging. Spectral imaging refers to simultaneous acquisition of two or more energy-windowed images...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/26128999/tu-ef-207-03-advances-in-stationary-breast-tomosynthesis-using-distributed-x-ray-sources
#17
O Zhou
UNLABELLED: Breast imaging technology is advancing on several fronts. In digital mammography, the major technological trend has been on optimization of approaches for performing combined mammography and tomosynthesis using the same system. In parallel, photon-counting slot-scan mammography is now in clinical use and more efforts are directed towards further development of this approach for spectral imaging. Spectral imaging refers to simultaneous acquisition of two or more energy-windowed images...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/26128920/tu-cd-207-04-radiation-exposure-comparisons-of-cesm-with-2d-ffdm-and-3d-tomosynthesis-mammography
#18
J James, T Boltz, W Pavlicek
PURPOSE: While mammography is considered the standard for front-line breast cancer screening, image sensitivity and specificity can be affected by factors like dense breast tissue. Contrast-enhanced spectral mammography (CESM) shows promising initial results for dense breasts but comes at the cost of increased dose compared with full-field-digital-mammography (FFDM). The goal of this study is to quantitatively assess the dose increase of CESM in comparison with 2D-FFDM and 3D-Tomo at varying breast thickness...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/26127352/su-e-i-46-comparison-study-of-reconstruction-algorithms-for-prototype-digital-breast-tomosynthesis-using-various-type-of-breast-phantoms
#19
Y Kim, H Kim
PURPOSE: Qualitative evaluations for digital breast tomosynthesis were previously performed on a phantom with unrealistic model with heterogeneous background and noise which is not representative of real breast. The purpose of this study is to compare reconstruction algorithms for digital breast tomosynthesis using various type of breast phantoms METHODS: DBT was performed on a prototype unit which is optimized for very low exposures with rapid readout. Three algorithms, a BP algorithm, a FBP algorithm, an iterative EM algorithm were compared in this study...
June 2015: Medical Physics
https://www.readbyqxmd.com/read/25763913/-new-trends-and-novel-possibilities-in-the-diagnostic-imaging-of-breast-cancer
#20
REVIEW
Mária Bidlek, Eszter Kovács, Krisztina Fehér, Mária Gõdény
Complex tumor therapy development and new opportunities in surgery, which take into account both oncological principles as well as esthetic aspects, have set the requirements far higher for diagnostic imaging of the breast and for radiologists. Despite these new opportunities, X-ray mammography remains the basic examination. However, part of the cancers is hidden on the mammogram, which is partly a consequence of the dense glandular tissue and may also be influenced by the histological type of cancer. Besides reducing radiation dose, digital X-ray mammography improves the examination sensitivity of the dense breast...
March 2015: Magyar Onkologia
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