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- W2349857959 abstract "Objective To assess PET reconstructed image effected by different 18 F FDG dosages with quantitative and qualitative analysis. Methods To perform PET phantom acquisition by routine clinical parameters after filled with different doses of 18 F FDG solution. An identical slice was extracted from reconstructed image for doing following analysis: the hot area standard uptake value (SUV), the ratio of hot area to cold area, the standard deviation on background area, the ratio of true coincidence to random. Results 296 MBq: The image uniformity was terribly worse, T/R=0.83, other indexes were irregular. 148 MBq: The image presentation looked like the image without attenuation correction, T/R=1.64, other indexes were moderate. 74, 37 and 18.5 MBq: The images were with excellent uniformity, resolution and contrast, the background noise was suitable, all of the quantitative indexes were good. 9.25 and 4.625 MBq: The uniformity and resolution was degraded terribly because of the higher noise and lower information. Conclusion Combining above results with other considerations, such as radiation exposure, information amount and acquisition time, we think the optimal dosage should be 4.625～11.1 MBq/kg." @default.
- W2349857959 created "2016-06-24" @default.
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- W2349857959 date "2002-01-01" @default.
- W2349857959 modified "2023-09-24" @default.
- W2349857959 title "Effect of~(18)F-FDG dosage alternation on final PET image" @default.
- W2349857959 hasPublicationYear "2002" @default.
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