|
KMID : 1103720100620060523
|
|
Journal of the Korean Society of Radiology
2010 Volume.62 No. 6 p.523 ~ p.528
|
|
|
Diagnostic Reference Level of Patient Dose during a Plain Chest Radiography Examination in Korea
|
|
Chung Myung-Jin
Lim Hyo Keun
Chung Myung-Jin
Lee Byung-Young
Kim Hyeog-Ju
|
|
|
Abstract
|
|
|
Purpose: To establish recommendation criteria for the determination of patient dose for a plain chest radiography examination (PCR) by surveying the examination protocols for the performance of PCR, determining patient doses, and analyzing the relationship between these protocols and patient dose.
Materials and Methods: We surveyed the examination protocols for the PCR of 95 radiography units in 82 institutes. We measured the patient dose as the surface entrance dose (SED) in these unites using an anthropomorphic phantom. We ultimately compared the results of the survey against several significant criteria.
Results: The protocol for performing a PCR in Korea was 111 ± 17 kVp and 7.0 ± 6.7 mAs. The mean and median SED were 0.30 ± 0.27 mGy and 0.22 mGy, respectively. The third quartile value was 0.34 mGy, while the variability between the types of institutes and the average values of SED were 0.27 ± 0.17 mGy, 0.28 ± 0.29 mGy, and 0.34 ± 0.31 mGy for primary, secondary, and tertiary hospitals, respectively. The types of units include the average values of SED, which were 0.18 ± 0.11 mGy, 0.37 ± 0.28 mGy, and 0.32 ± 0.31 mGy for film/screen, CT, and digital radiography systems, respectively.
Conclusion: The average patient dose during PCR in Korea was 0.30 mGy/exam. In perspective, the diagnostic reference level of patient dose for postero-anterior chest radiography was 0.34 mGy/exam.
|
|
|
KEYWORD
|
|
|
Radiology, Thoracic, Radiation Dosage, Quality Control
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
  
|
|