OPTIMIZED MAMMOGRAPHY INSTRUMENT

优化的乳房X线摄影仪器

• 批准号: 3852947
• 负责人: A EIDSATH
• 金额: --
• 依托单位: NATIONAL CENTER FOR RESEARCH RESOURCES
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/3852947
• 关键词: bioengineering /biomedical engineering; biomedical equipment development; clinical biomedical equipment; evaluation /testing; female; human subject; image enhancement; mammography

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 has been minimized while maintaining satisfactory image quality. 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.

乳房x光检查在早期发现乳腺癌方面起着至关重要的作用。