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- W1444201166 abstract "IGRT has significantly improved the accuracy of radiation treatment by utilizing CT scans for contouring target and organ during treatment planning and x-ray imaging devices integrated to treatment units for patient positioning during radiation delivery. A significant progress has been made recently to improve CTimage quality in treatment planning and to reduce daily imaging guidance dose. This course is designed to provide educational guidance on these two important imaging issues.I) Optimization of CT Simulation Imaging. This part will provide guidance on optimizing CTimage quality in radiation therapy. There have been many publications on optimizing CT protocols for diagnosticimaging purposes. However, the effort to optimize CT protocols for imaging applications in radiation therapy has been limited. Although some lessons we learn from diagnosticCTimaging can be applied to CTimaging in radiation therapy, there should be more emphasis on task-based image quality. In addition, there are imaging features widely used in diagnosticCTimaging (e.g., metal artifact reduction) may not be well known in radiation therapy community but can play critical roles for accurate radiation treatment planning. This part of the session will feature a conversation between a radiation therapy physicist and a diagnosticimaging physicist focusing on the needs specific to CT simulation imaging in radiation therapy and the approaches to address these needs.II) Techniques to reduce radiationdose resulting from daily imaging guidance procedures. This part will provide an overview of radiationdose to patients resulting from different image devices used in image-guided procedures and provide guidance on the techniques available to reduce imagingdose resulting from daily imaging guidance procedures. Depending on the image modality including MV and kV imaging devices, a variety of techniques are available to significantly reduce daily imaging guidance dose to organs at risk. Different methods of accounting for the imagingdoses will be discussed.Learning Objectives:1. Understand CTimage quality needs specific to imaging applications in radiation therapy2. Learn the imaging acquisition and reconstruction optimization for CTimaging applications in radiation therapy3. Discuss appropriate approaches to optimize CT protocols in radiation therapy;4. Briefly review the typical radiationdose to patients resulting from different image-guided procedures MV and kV imaging modalities;5. Understand the techniques available to reduce imagingdose6. Discuss different methods of accounting for the imagingdoses" @default.
- W1444201166 created "2016-06-24" @default.
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- W1444201166 date "2015-06-01" @default.
- W1444201166 modified "2023-09-27" @default.
- W1444201166 title "TH-C-BRD-00: Optimization of CT Planning Imaging and Techniques to Reduce Radiation Dose Resulting From Daily Imaging Guidance Procedures" @default.
- W1444201166 doi "https://doi.org/10.1118/1.4926218" @default.
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