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- W2384405767 abstract "Objective:To study and apply the method of QC test for CT scanners.Methods:We measured the following performance parameters for CT scanners: scan localization light accuracy,table movement accuracy,slice width,CT value linearity and contrast scale,field uniformity,noise,high contrast resolution,low contrast resolution,CT dose index(CTDI) with Catphan 500 phantom made by the phantom laboratory of U.S.A and multi-purpose dosimeter made by Swedishalk Corporation.Results:All CT scanners as appraised are qualified as the whole,but part of mechanic parameters are beyond the regulated limits.Conclusion:To assure the performance of CT system and maintain the optimized image quality according to the image quality parameters test,such as noise,CT value linearity,contrast resolution et al.It is important to understand the radiation danger level and optimize the scanning protocol by checking up the CTDI." @default.
- W2384405767 created "2016-06-24" @default.
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- W2384405767 date "2006-01-01" @default.
- W2384405767 modified "2023-09-25" @default.
- W2384405767 title "The study of CT scanner quality control test" @default.
- W2384405767 hasPublicationYear "2006" @default.
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