COMPUTER CONTROLLED X-RAY IMAGE ANALYZER

计算机控制X射线图像分析仪

• 批准号: 3491617
• 负责人: GERARD J CELITANS
• 金额: $ 5万
• 依托单位: RAD-IMAGE CORPORATION
• 依托单位国家: 美国
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1987-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3491617
• 关键词: X ray; biomedical equipment resource; clinical biomedical equipment; computer assisted diagnosis; image processing

Develop a portable, microcomputer controlled scanning digitizer and auxilliary devices to measure: (1) X-ray target intensity distributions directly; (2) light intensity distributions from fluorescent screens, image intensifiers, and backlighted, developed x-ray films; and (3) kilovoltage, x-ray exposure, half- value layers, and time of exposure. Develop software to: (1) calculate and display in 3-D graphics, Optical Transfer Functions and Modulation Transfer Functions from measured Point Spread Functions; (2) characterize and calculate x-ray parameters and predict x-ray image parameters; and (3) educational software explaining the physical basis of x-ray image theory. The portable system will enable the imaging characteristics of an x-ray system to be measured rapidly in situ in the field at a sophistication level found now only at advanced laboratory facilities and requiring substantial time. The increased knowledge of image parameters should improve the level of medical image quality and reduce patient radiation dose. The developed system will performed x-ray unit measurements now requiring several instruments and it will use recent solid-state advancements in microcomputer hardware. It has significant potential non x-ray image systems because of its portability, ease of use, multifunction capability, and major cost savings compared to other instruments and methods.

研制一种便携式微电脑控制的扫描数字化仪 用于测量的辅助设备：(1)X射线靶强度 直接分布；(2)光强分布 荧光屏、图像增强器和背光， 已冲洗的x射线胶片；以及(3)千伏x射线曝光，一半- 价值层次和曝光时间。 开发软件：(1)计算并以三维图形显示， 光学传递函数和调制传递函数 从测量的点扩展函数；(2)表征和 计算X射线参数并预测X射线图像参数； 以及(3)解释x射线的物理基础的教育软件 形象论。 该便携式系统将使 现场快速现场测量X射线系统 现在只有在高级实验室才能达到复杂程度 设施齐全，需要大量时间。增长的知识 图像参数的优化应提高医学图像的质量 提高质量，减少患者的辐射剂量。已开发的系统 将进行X射线单位测量，现在需要几个 仪器，它将使用最新的固态技术在 微型计算机硬件。它有很大的非x射线潜力。 图像系统由于其便携性、易用性、 多功能，与以下产品相比节省了大量成本 其他仪器和方法。