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Digital mammography is a specialized form of mammography that uses digital receptors and computers instead of x-ray film to help examine breast tissue for breast cancer.〔http://www.imaginis.com/breast-health/digital-mammography-2〕 The electrical signals can be read on computer screens, permitting more manipulation of images to theoretically allow radiologists to more clearly view the results.〔〔http://www.radiologyinfo.org/en/info.cfm?pg=mammo〕 Digital mammography may be "spot view", for breast biopsy,〔http://www.theradiologyblog.com/2011/10/how-to-perform-ultrasound-guided-breast.html〕 or "full field" (FFDM) for screening.〔 Digital mammmography is also utilized in stereotactic biopsy. Breast biopsy may also be performed using a different modality, such as ultrasound or magnetic resonance imaging (MRI). While radiologists had hoped for more marked improvement, the effectiveness of digital mammography was found comparable to traditional x-ray methods in 2004, though there may be reduced radiation with the technique and it may lead to fewer retests.〔 Specifically, it performs no better than film for post-menopausal women, who represent more than three-quarters of women with breast cancer.〔 The U.S. Preventive Services Task Force concluded that there was insufficient evidence to recommend for or against digital mammography. Digital mammography is a NASA spin-off, utilizing technology developed for the Hubble Space Telescope.〔http://www.nasa.gov/pdf/363454main_medical_flyer.pdf〕 ==Prevalence== As of 2007, about 8% of American screening centers used digital mammography. Around the globe, systems by Fujifilm Corporation are the most widely used. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「digital mammography」の詳細全文を読む スポンサード リンク
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