ArticleProceedings of SPIE--the International Society for Optical Engineering2026
Design of Multiple Focal Spots for High-Resolution CT.
Article in Proceedings of SPIE--the International Society for Optical Engineering, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
Funding
Abstract
High spatial resolution in computed tomography (CT) is increasingly limited by the x-ray source. While x-ray focal spots can be made very small, such source tend to have very limited fluence. Although longer integration times can be used to deliver the required fluence, this can result in long scan times and resolution losses due to motion. Recent work has suggested that multiple structured x-ray sources may be able to help deliver both the required fluence and the fine resolution details in projection data to enable better high-resolution images. In this work, we develop an analytic predictor of task-based performance for a multi-source CT system with structured focal spots. We adopt an observer model and design a dual source system for high resolution tasks and evaluate that system compared to a traditional small monolithic focal spot system. We demonstrate that the design process can be used to enhance high resolution performance showing the potential efficacy of the analysis and design process.
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Registered trials
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