نتایج جستجو برای: full field digital mammography system

تعداد نتایج: 3277808  

Journal: :Radiology 2016
Lin Chen Shonket Ray Brad M Keller Said Pertuz Elizabeth S McDonald Emily F Conant Despina Kontos

Purpose To investigate the impact of radiation dose on breast density estimation in digital mammography. Materials and Methods With institutional review board approval and Health Insurance Portability and Accountability Act compliance under waiver of consent, a cohort of women from the American College of Radiology Imaging Network Pennsylvania 4006 trial was retrospectively analyzed. All patien...

2005
Edward A. Sickles

─ 179 ─ Screen-film mammography has certain technical limitations which reduce its effectiveness: the film gradient must be balanced against the need for wide latitude, detection of microcalcifications and portrayal of the clarity of the margins of breast masses are reduced due to the presence of film noise in the displayed image, film processing artifacts can degrade the mammographic image, an...

2015
A. Kawaguchi M. Kobayashi M. Suzuki T. Otsuka S. Hattori S. Suzuki

In general, dose evaluation for mammography uses average glandular dose (AGD). In mammography, entrance surface dose (ESD) is high, which is well known, but actual clinical data of ESD are not reported so much. This study investigated AGD and ESD for patients whose doses were estimated from 200 mammography examinations using European Organization for Quality-Assured Breast Screening and Diagnos...

Journal: :Radiology management 2004
Andrew P Smith Patricia A Hall Donna M Marcello

While screening mammography is recognized as the most effective method for early detection of breast cancer, this modality has limitations that are the driving force behind efforts to refine existing mammography technologies and develop new ones offering improved detection of breast cancer. Full-field digital mammography (FFDM) systems use digital detectors to convert x-ray photons to digital s...

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