Tái tạo ảnh XQuang

Trường Đại Học Nguyễn Tất Thành Ngành kỹ thuật y sinh Image reconStruction Tomography  Two steps: - step 1: data acquisition (a single slice called Sinogram) - step 2: Image reconstruction from projections CT CT Computed Tomography Back projection Data Acquisition Back projection Back projection Data Acquisition Back projection Sinogram Summation of projections Filter Filter Filter Filter Filter Filter Filter Display  CT number OR Hounsfield Units Display  Window width = Contrast  Level = HU Display Display Biosignal and Biomedical imaging processing