15. Appendices
188 Green Smart User Manual
brain CT were evaluated for 19 protocols in nine hospitals on various (2–320 detector
rows) MDCT scanners.
Results: The maximum value of mean organ dose in brain CT was 34.3 mGy for the
brain. Maximum values of mean doses for the radiosensitive lens and thyroid were
32.7 mGy for a lens in brain CT and 17.2 mGy for thyroid in neck CT. Seventy-Fifth
percentile of effective dose distribution in brain CT was approximately the same as
the diagnostic reference level (DRL) in the 2003 UK survey.
2) Website
For additional information on pediatric X-ray imaging, please refer to the websites
below.
http://www.fda.gov/radiation-
emittingproducts/radiationemittingproductsandprocedures/medicalimaging/ucm298899.htm
http://www.imagegently.org/
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