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US07668357B2 Method and system for using computed tomography to test pulmonary function 有权
使用计算机断层扫描测试肺功能的方法和系统

Method and system for using computed tomography to test pulmonary function
Abstract:
Computed axial tomography images of different respiratory phases of lungs are obtained, where the intensity of the image measures lung density. One image is deformed to the coordinate space of the other image, and the differences between the intensity values of the other image as compared to the mapped image are evaluated as measures of ventilation.
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