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https://www.readbyqxmd.com/read/28102696/compression-forces-used-in-the-norwegian-breast-cancer-screening-program
#1
Gunvor G Waade, Nataliia Moshina, Sofie Sæbuødegård, Peter Hogg, Solveig Hofvind
OBJECTIVES: Compression is used in mammography to reduce breast thickness, which is claimed to improve image quality and reduce radiation dose. In the XXX Breast Cancer Screening Program (XBCSP), the recommended range of compression force for full field digital mammography is 11-18 kg (108-177 Newton [N]). This is the first study to investigate the compression force used in the program. METHODS: The study included information from 17,951 randomly selected women screened with FFDM at 14 breast centres in the XBCSP, January-March 2014...
January 19, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28101916/perceptions-of-cancer-of-unknown-primary-site-a-national-survey-of-australian-medical-oncologists
#2
Christos S Karapetis, Lisa Guccione, Martin Hn Tattersall, Helen Gooden, Claire M Vajdic, Sylvie Lambert, Monica Robotin, Linda Mileshkin, Penelope Schofield
INTRODUCTION: Despite being the 6(th) cause of cancer death in Australia, cancer of unknown primary (CUP) site remains poorly understood. AIMS: To describe practices relating to the diagnosis, investigation, classification, communication and management of CUP amongst medical oncologists. METHODS: We invited all members of the Medical Oncology Group of Australia to participate in a national, anonymous online survey about CUP. The survey collected data regarding diagnosis acceptance, diagnostic tests, treatment protocols and communication practices around the diagnosis of CUP...
January 19, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28099330/clarifying-the-debate-on-population-based-screening-for-breast-cancer-with-mammography-a-systematic-review-of-randomized-controlled-trials-on-mammography-with-bayesian-meta-analysis-and-causal-model
#3
Tony Hsiu-Hsi Chen, Amy Ming-Fang Yen, Jean Ching-Yuan Fann, Paula Gordon, Sam Li-Sheng Chen, Sherry Yueh-Hsia Chiu, Chen-Yang Hsu, King-Jen Chang, Won-Chul Lee, Khay Guan Yeoh, Hiroshi Saito, Supannee Promthet, Chisato Hamashima, Alimin Maidin, Fredie Robinson, Li-Zhong Zhao
BACKGROUND: The recent controversy about using mammography to screen for breast cancer based on randomized controlled trials over 3 decades in Western countries has not only eclipsed the paradigm of evidence-based medicine, but also puts health decision-makers in countries where breast cancer screening is still being considered in a dilemma to adopt or abandon such a well-established screening modality. METHODS: We reanalyzed the empirical data from the Health Insurance Plan trial in 1963 to the UK age trial in 1991 and their follow-up data published until 2015...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28099107/case-238-spontaneous-pneumothorax-secondary-to-intrapulmonary-necrobiotic-rheumatoid-nodule
#4
Ammar A Chaudhry, Maryam Gul, Abbas A Chaudhry, William Moore
History A 54-year-old white woman with a history of rheumatoid arthritis who was taking glucocorticoids and methotrexate presented to the emergency department in December with worsening shortness of breath and chest heaviness for 1 week. She reported additional symptoms of weakness, headache, and arthralgia primarily involving her bilateral hands, wrist, ankles, and feet. She denied experiencing fevers, syncope or presyncope, focal neurologic deficits, chest pain, nausea, vomiting, unintentional weight loss, or recent trauma...
February 2017: Radiology
https://www.readbyqxmd.com/read/28097625/effects-of-a-web-based-intervention-on-women-s-breast-health-behaviors
#5
Deborah J Bowen, Robert Robbins, Nigel Bush, Hendrika Meischke, Abi Ludwig, Jean Wooldridge
Helping women make choices to reduce cancer risk and to improve breast health behaviors is important, but the best ways to reach more people with intervention assistance is not known. To test the efficacy of a web-based intervention designed to help women make better breast health choices, we adapted our previously tested, successful breast health intervention package to be delivered on the Internet, and then we tested it in a randomized trial. We recruited women from the general public to be randomized to either an active intervention group or a delayed intervention control group...
January 17, 2017: Translational Behavioral Medicine
https://www.readbyqxmd.com/read/28097527/breast-cancer-screening-and-social-media-a-content-analysis-of-evidence-use-and-guideline-opinions-on-twitter
#6
Anthony Nastasi, Tyler Bryant, Joseph K Canner, Mark Dredze, Melissa S Camp, Neeraja Nagarajan
There is ongoing debate regarding the best mammography screening practices. Twitter has become a powerful tool for disseminating medical news and fostering healthcare conversations; however, little work has been done examining these conversations in the context of how users are sharing evidence and discussing current guidelines for breast cancer screening. To characterize the Twitter conversation on mammography and assess the quality of evidence used as well as opinions regarding current screening guidelines, individual tweets using mammography-related hashtags were prospectively pulled from Twitter from 5 November 2015 to 11 December 2015...
January 17, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28094850/discriminating-solitary-cysts-from-soft-tissue-lesions-in-mammography-using-a-pretrained-deep-convolutional-neural-network
#7
Thijs Kooi, Bram van Ginneken, Nico Karssemeijer, Ard den Heeten
PURPOSE: It is estimated that 7% of women in the western world will develop palpable breast cysts in their lifetime. Even though cysts have been correlated with risk of developing breast cancer, many of them are benign and do not require follow-up. We develop a method to discriminate benign solitary cysts from malignant masses in digital mammography. We think a system like this can have merit in the clinic as a decision aid or complementary to specialised modalities. METHODS: We employ a deep Convolutional Neural Network (CNN) to classify cyst and mass patches...
January 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28094134/cervical-and-breast-cancer-screening-after-cares-a-community-program-for-immigrant-and-marginalized-women
#8
Sheila F Dunn, Aisha K Lofters, Ophira M Ginsburg, Christopher A Meaney, Farah Ahmad, M Catherine Moravac, Cam Tu Janet Nguyen, Angela M Arisz
INTRODUCTION: Marginalized populations such as immigrants and refugees are less likely to receive cancer screening. Cancer Awareness: Ready for Education and Screening (CARES), a multifaceted community-based program in Toronto, Canada, aimed to improve breast and cervical screening among marginalized women. This matched cohort study assessed the impact of CARES on cervical and mammography screening among under-screened/never screened (UNS) attendees. METHODS: Provincial administrative data collected from 1998 to 2014 and provided in 2015 were used to match CARES participants who were age eligible for screening to three controls matched for age, geography, and pre-education screening status...
January 13, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28091596/non-invasive-optical-estimate-of-tissue-composition-to-differentiate-malignant-from-benign-breast-lesions-a-pilot-study
#9
Paola Taroni, Anna Maria Paganoni, Francesca Ieva, Antonio Pifferi, Giovanna Quarto, Francesca Abbate, Enrico Cassano, Rinaldo Cubeddu
Several techniques are being investigated as a complement to screening mammography, to reduce its false-positive rate, but results are still insufficient to draw conclusions. This initial study explores time domain diffuse optical imaging as an adjunct method to classify non-invasively malignant vs benign breast lesions. We estimated differences in tissue composition (oxy- and deoxyhemoglobin, lipid, water, collagen) and absorption properties between lesion and average healthy tissue in the same breast applying a perturbative approach to optical images collected at 7 red-near infrared wavelengths (635-1060 nm) from subjects bearing breast lesions...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28081538/testing-breast-cancer-serum-biomarkers-for-early-detection-and-prognosis-in-pre-diagnosis-samples
#10
Anna Kazarian, Oleg Blyuss, Gergana Metodieva, Aleksandra Gentry-Maharaj, Andy Ryan, Elena M Kiseleva, Olga M Prytomanova, Ian J Jacobs, Martin Widschwendter, Usha Menon, John F Timms
BACKGROUND: Breast cancer is a leading cause of morbidity and mortality worldwide. Although mammography screening is available, there is an ongoing interest in improved early detection and prognosis. Herein, we have analysed a combination of serological biomarkers in a case-control cohort of sera taken before diagnosis. METHODS: This nested case-control study within the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS) used serum samples from 239 women who subsequently developed breast cancer and 239 matched cancer-free controls...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28081335/comparison-of-wire-guided-localization-and-radio-guided-occult-lesionlocalization-in-preoperative-localization-of-nonpalpable-breast-lesions
#11
Nazım Barış Kanat, Murat Tuncel, Tamer Aksoy, Ayşegül Fırat, Figen Demirkazık, Demirali Onat, Meltem Çağlar Tuncalı, Biray Emine Caner
BACKGROUND/AIM: Breast lesions that are not palpable on physical examination but considered suspicious for malignancy on mammography or ultrasonography should be marked before surgery. Wire-guided localization (WGL) is the most frequently used method for preoperative marking of nonpalpable breast lesions (NPBLs). An alternative is marking by a radioactive agent (radio-guided occult lesion localization; ROLL). The present study aimed to compare WGL and ROLL for preoperative marking. MATERIALS AND METHODS: The study included 25 patients marked by ROLL and 11 patients marked by WGL...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28075622/imaging-surveillance-after-primary-breast-cancer-treatment
#12
Diana L Lam, Nehmat Houssami, Janie M Lee
OBJECTIVE: Current clinical guidelines are consistent in supporting annual mammography for women after treatment of primary breast cancer. Surveillance imaging beyond standard digital mammography, including digital breast tomosynthesis (DBT), breast ultrasound, and MRI, may improve outcomes. This article reviews the evidence on the performance and effectiveness of breast imaging modalities available for surveillance after treatment of sporadic unilateral primary breast cancer and identifies additional factors to be considered when selecting an imaging surveillance regimen...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28075608/sonographic-appearance-of-lesions-diagnosed-as-lobular-neoplasia-at-sonographically-guided-biopsies
#13
Romuald Ferré, Atilla Omeroglu, Benoît Mesurolle
OBJECTIVE: The objective of our study was to review the sonographic features of breast lesions yielding lobular neoplasia (LN) at sonographically guided biopsy, evaluate the surgical pathology outcome of these lesions, and determine if imaging findings or clinical features can be used to predict an upgrade to malignancy. MATERIALS AND METHODS: Of the 8205 sonographically guided breast biopsies (14-gauge cores) performed from 2007 through 2014, 22 yielded a diagnosis of LN, which means that LN was the most severe pathologic lesion...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28075335/towards-standardization-of-x-ray-beam-filters-in-digital-mammography-and-digital-breast-tomosynthesis-monte-carlo-simulations-and-analytical-modelling
#14
Suman Shrestha, Srinivasan Vedantham, Andrew Karellas
In digital breast tomosynthesis and digital mammography, the x-ray beam filter material and thickness vary between systems. Replacing K-edge filters with Al was investigated with the intent to reduce exposure duration and to simplify system design. Tungsten target x-ray spectra were simulated with K-edge filters (50��m Rh; 50��m Ag) and Al filters of varying thickness. Monte Carlo simulations were conducted to quantify the x-ray scatter from various filters alone, scatter-to-primary ratio (SPR) with compressed breasts, and to determine the radiation dose to the breast...
January 11, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28074018/evaluation-of-dose-homogeneity-in-cone-beam-breast-computed-tomography
#15
Giovanni Mettivier, Matilde Costa, Nico Lanconelli, Anna Ianiro, Mariagabriella Pugliese, Maria Quarto, Paolo Russo
The aim of this study is to determine, via measurements on phantoms and Monte Carlo (MC) simulations, the dose distribution of absorbed dose in a cone-beam breast computed tomography scan. The absorbed dose volume distribution was measured inside a polyethylene cylindrical phantom, simulating adipose breast tissue, using LiF:Mg,Ti thermoluminescence dosimeters. A reasonable agreement (between 2 and 8%) between the simulated and measured data was observed. The 3D distribution of absorbed dose was evaluated at 40, 60 and 80 kV in a phantom simulating a pendant breast...
January 10, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28072617/evaluation-of-the-response-to-breast-cancer-neoadjuvant-chemotherapy-using-18f-fdg-positron-emission-mammography-compared-with-whole-body-18f-fdg-pet-a-prospective-observational-study
#16
Mutsumi Noritake, Kazutaka Narui, Tomohiro Kaneta, Sadatoshi Sugae, Kentaro Sakamaki, Tomio Inoue, Takashi Ishikawa
PURPOSE: The aim of this study was to assess therapeutic response to breast cancer neoadjuvant chemotherapy (NAC) by F-FDG positron emission mammography (PEM) compared with that to whole-body F-FDG PET (WBPET). METHODS: Twenty patients underwent WBPET and PEM 3 times: the first time was before NAC, the second time was after 2 courses of NAC, and the third time was after all courses of NAC. A pathological complete response (pCR) was defined as no evidence of residual invasive cancer with or without ductal carcinoma in situ...
January 9, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28072582/the-effect-of-system-geometry-and-dose-on-the-threshold-detectable-calcification-diameter-in-2d-mammography-and-digital-breast-tomosynthesis
#17
Andria Hadjipanteli, Premkumar Elangovan, Alistair Mackenzie, Padraig T Looney, Kevin Wells, David R Dance, Kenneth C Young
Digital breast tomosynthesis (DBT) is under consideration to replace or to be used in combination with 2D-mammography in breast screening. The aim of this study was the comparison of the detection of microcalcification clusters by human observers in simulated breast images using 2D-mammography, narrow angle (15°/15 projections) and wide angle (50°/25 projections) DBT. The effects of the cluster height in the breast and the dose to the breast on calcification detection were also tested. Simulated images of 6 cm thick compressed breasts were produced with and without microcalcification clusters inserted, using a set of image modelling tools for 2D-mammography and DBT...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28072573/design-and-application-of-a-structured-phantom-for-detection-performance-comparison-between-breast-tomosynthesis-and-digital-mammography
#18
L Cockmartin, N W Marshall, G Zhang, K Lemmens, E Shaheen, C Van Ongeval, E Fredenberg, D R Dance, E Salvagnini, K Michielsen, H Bosmans
This paper introduces and applies a structured phantom with inserted target objects for the comparison of detection performance of digital breast tomosynthesis (DBT) against 2D full field digital mammography (FFDM). The phantom consists of a 48 mm thick breast-shaped polymethyl methacrylate (PMMA) container filled with water and PMMA spheres of different diameters. Three-dimensionally (3D) printed spiculated masses (diameter range: 3.8-9.7 mm) and non-spiculated masses (1.6-6.2 mm) along with microcalcifications (90-250 µm) were inserted as targets...
January 10, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28071879/standards-for-accessible-medical-diagnostic-equipment-final-rule
#19
(no author information available yet)
The Architectural and Transportation Barriers Compliance Board (Access Board or Board) is issuing accessibility standards for medical diagnostic equipment. The standards for medical diagnostic equipment (MDE Standards) contain minimum technical criteria to ensure that medical diagnostic equipment, including but not limited to, examination tables, examination chairs, weight scales, mammography equipment, and other imaging equipment used by health care providers for diagnostic purposes are accessible to, and usable by, individuals with disabilities...
9, 2017: Federal Register
https://www.readbyqxmd.com/read/28071615/knowledge-attitude-and-practice-about-breast-cancer-and-breast-self-examination-among-women-seeking-out-patient-care-in-a-teaching-hospital-in-central-india
#20
Rao Siddharth, D Gupta, R Narang, P Singh
BACKGROUND: Breast cancer (BC) continues to be a major cause of morbidity and mortality throughout the world. Early detection of BC and early treatment increases the chance of survival. According to Breast Health Global Initiative guidelines for low and middle income countries, diagnosing BCs early by promoting breast self-awareness; clinical breast examination (CBE) and resource adapted mammographic screening will reduce BC mortality. There is a paucity of data on the knowledge and awareness of BC and self-breast examination in India...
April 2016: Indian Journal of Cancer
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