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OPTIMIZED MAMMOGRAPHY INSTRUMENT

OPTIMIZED MAMMOGRAPHY INSTRUMENT
优化的乳房X线摄影仪器
批准号：
3789414
负责人：
A EIDSATH
金额：
$0.0万
依托单位：
NATIONAL CENTER FOR RESEARCH RESOURCES
依托单位国家：
美国
项目类别：
财政年份：
--
资助国家：
美国
项目状态：
未结题
起止时间：
至
来源：
https://reporter.nih.gov/project-details/3789414
关键词：
bioengineering /biomedical engineering biomedical equipment development clinical biomedical equipment female human subject image enhancement mammography radiation dosage radiobiology

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中文摘要
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英文摘要
Mammography plays a vital part in the early detection of breast cancer. Unfortunately, mammography units being used today have never been analyzed from a systems point of view. Multiparameter optimization studies of a mammography system have been reported by Muntz et al. (Med Phys 12:5, 1985) in which the patient dose was minimized while satisfactory image quality was maintained. The most important new feature of the design is the presence of an array of thin metal vanes arranged in an arc about the x-ray source, between the breast and the film. The vanes absorb scattered radiation and thus improve the quality of the image. In order for the vanes not to image on the film, the grid must move in a precisely controlled profile during the exposure.
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