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Changes in External Radiation Dose Rate for PET-CT Test Patients
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 Title & Authors
Changes in External Radiation Dose Rate for PET-CT Test Patients
Kim, Su-Jin; Han, Eun-Ok;
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 Abstract
This paper analyzes changes in the external radiation dose rate of PET-CT test patients as a part of providing basic materials for reduction of radiation exposure to PET-CT test patients. In theory the measurement of external radiation dose rate of PET-CT test patients shows that the further the distance from the patient injected with radioactive pharmaceutical and a longer time elapsement from the injection leads to a smaller amount of radiation. Particularly, the amount of radiation marked the highest in the chest was at 4.17 minutes immediately after the intravenous injection and in the head after 77.47 minutes after urination in advance to the PET-CT test. As in the generalized information, it is desired to keep distance between the patient and caretakers or professionals to reduce the amount of radiation exposure from PET-CT test patients and to resume contact the patient after the time when the radiation has reduced. If contact is unavoidable, it is desired to keep at least 200cm from the patient. In addition, the amount of radiation reached the highest in the chest at first and then in the head from 77 minutes after injection. Accordingly, it would be helpful in achieving the optimization if contact is made based on the patient's physical characteristics. This study is significant as it measures changes in radiation the dose rate by; distance from the PET-CT test patient, time elapsed, and specific parts of body. Further studies based on the findings in this paper are required to analyze changes in radiation dose rate in accordance with individual characteristics unique to PET-CT patients and to utilize the results to reduce the amount of radiation patient, caretakers and professions are exposed.
 Keywords
PET-CT;Part of Body;Patient;Radiation Dose Rate;
 Language
Korean
 Cited by
1.
시스템 개선을 통한 핵의학 검사실의 공간 선량률 감소방안,문재승;신민용;안성철;유문곤;김수근;

한국의료질향상학회지, 2014. vol.20. 1, pp.60-73 crossref(new window)
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Solution to Decrease Spatial Dose Rate in Laboratory of Nuclear Medicine through System Improvement, Quality Improvement in Health Care, 2014, 20, 1, 60  crossref(new windwow)
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Measurement and Estimation for the Clearance of Radioactive Waste Contaminated with Radioisotopes for Medical Application, Progress in Medical Physics, 2014, 25, 1, 8  crossref(new windwow)
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