X-Ray radiation reduction system

摘要

By exposing the ROI at full exposure and full frame rate while exposing the area outside the ROI with low exposure and up to full frame rate an overall reduction in X-Ray radiation is achieved. The resultant image has slightly lower resolution outside the ROI but better resolution (as compared to standard fluoroscopy practices) in the ROI because of reduced scattering. Different exposures are supplied to different parts of the image by using a fast shutter in conjunction with the exposure control.