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16 March 2020 Rotating projection based localizer radiograph which enables multiple pre-scan function for CT
Yi Tian, Xiang Wen, Taotao Li, Guoqing Zhang, Wenhao Chen
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Proceedings Volume 11312, Medical Imaging 2020: Physics of Medical Imaging; 113123R (2020) https://doi.org/10.1117/12.2549904
Event: SPIE Medical Imaging, 2020, Houston, Texas, United States
Abstract
In a modern CT system, the localizer radiograph (LR), which makes a visualized scan range planning and provides information for individual patient oriented automatic exposure control, is now a standard procedure before a major diagnostic scan. We proposed a rotating projection based localizer radiograph (RPLR), in contrast to current realization as static tube positioned scanning. With this approach, the localizer Radiograph can be realized to improve the whole clinical workflow by providing no geometry deformation from multiple viewing directions within one scan, with balanced image performance and controllable x-ray dose, . Somehow with this feasibility check on current 16-row CT gantry, the scanned dose is still higher than traditional situation, but with dedicated dose reduction techniques proposed with the RPLP, the exposure dose for the scanning can be dramatically decreased.
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Yi Tian, Xiang Wen, Taotao Li, Guoqing Zhang, and Wenhao Chen "Rotating projection based localizer radiograph which enables multiple pre-scan function for CT", Proc. SPIE 11312, Medical Imaging 2020: Physics of Medical Imaging, 113123R (16 March 2020); https://doi.org/10.1117/12.2549904
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KEYWORDS
X-ray computed tomography
Data acquisition
Modulation
Scanners
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