Currently, medical exposure for diagnostic purposes is the main dose-generating factor with has a significant reduction potential. In some countries doses received from radiation diagnostic manipulations have overtaken the naturally-occurringbackground radiation and have further increasing tendency. This situation is associated with increasing frequency of diagnostic procedures and with spreading of high-dose research methods. The problem of excessive radiation exposure among pediatric patients is especially acute.It’s associated with:
a high susceptibility of children to ionizing radiation
a high proliferative activity of the body
longer life expectancy...
Description of activity and work performed
86 patients were enrolled in this study. Median ED received by patients using 4-phase CT was 30 mSv. In 1-phase CT median ED received by patients was 6,8 mSv.
To assess the diagnostic value of each phase, we introduced an additional criterion - “phase sensitivity”, which characterizes the quality of the resulting image, namely the percentage of changed areas that are visualized without artifact from the contrast agent, with the ability to evaluate size, shape and structure. To evaluate this criterion, seven anatomical areas were...
Conclusion and recommendations
Multiphase CT examinations increasis the CEDs. One of the way to reduce the CED is to scan a child only in one venouse phase. We have proven that one-phase CT in pediatric HL doesn’t reduce the diagnodtic efficiency of CT as method in the whole. The sensitivity of the venous phase in the definition of lymphomatous lesions was 100%
K. Khasanova; Moscow/RU - nothing to disclose I. E. Tyurin; Moscow/RU - nothing to disclose
Radiological Protection in Medicine. ICRP Publication 105. Ann. ICRP-2007, 37 (6) http://www.icrp.org/publication.asp?id=ICRP%20Publication%20105 ссылка действительна на 21.05.18
Radiological protection in pediatric diagnostic and interventional radiology. ICRP Publication 121. Ann. ICRP -2013, 42(2) doi: 10.1016/j.icrp.2012.10.001.
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Howard J. Treatment of Pediatric Hodgkin...