نتایج جستجو برای: field digital mammography system

تعداد نتایج: 3079474  

Journal: :Physics in medicine and biology 2004
Jerry Wong Tong Xu Adeel Husain Huy Le Sabee Molloi

In mammography, thick or dense breast regions persistently suffer from reduced contrast-to-noise ratio (CNR) because of degraded contrast from large scatter intensities and relatively high noise. Area x-ray beam equalization can improve image quality by increasing the x-ray exposure to under-penetrated regions without increasing the exposure to other breast regions. Optimal equalization paramet...

Journal: :Journal of Digital Imaging 1998

Journal: :Radiology 2010
R Edward Hendrick

PURPOSE To compare radiation doses and lifetime attributable risks (LARs) of radiation-induced cancer incidence and mortality from breast imaging studies involving the use of ionizing radiation. MATERIALS AND METHODS Recent literature on radiation doses from radiologic procedures and organ doses from nuclear medicine procedures, along with Biologic Effects of Ionizing Radiation (BEIR) VII age...

Journal: :European journal of radiology 2013
C Dromain B Boyer R Ferré S Canale S Delaloge C Balleyguier

Computer-aided detection (CAD) systems have been developed for interpretation to improve mammographic detection of breast cancer at screening by reducing the number of false-negative interpretation that can be caused by subtle findings, radiologist distraction and complex architecture. They use a digitized mammographic image that can be obtained from both screen-film mammography and full field ...

Journal: :journal of health management and informatics 0
mohammad keshavarz shahabeddin abhari

one of the most common and important therapeutic tools used by physicians is prescription. the use of digital systems in the health field has many benefits and significant impacts on the health system. one of these systems is digital prescription. in this article, first, we will review the existing infrastructure and work done in this area, and then with a new perspective on health issues, we w...

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