It reduces radiation exposure in conventional imaging systems as well as enhancing data acquired from VCT, CT, and X-ray imaging
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Summary Lei Zhu and Tianye Niu from the School of Mechanical Engineering at Georgia Tech have related the use of Compton scatter imaging to maximize dose efficiency and enhance the visual results of VCT. Specifically, the invented method is able to be applied to a wide range of VCT systems by means of a large-area detector that allows a simultaneous targeting of multiple scatter sources. The method acquires both conventional CT projection data and scatter data in a single scan of the subject, thereby reducing the amount of exposure to radiation. The methods can be incorporated into commercial CT systems to provide electron density distribution for accurate patient absorbed dosed calculation, which is significant in treatment planning or optimization. As compared to existing methods, this invention is a simple and efficient data acquisition process and therefore is more widely applicable on clinical CT systems with a conventional large-area detector.