Radiation Dose using Chest CT for Patients with Pneumoconiosis Complication - Comparison with International Guidelines -

진폐요양환자의 흉부 CT촬영에 사용된 선량 - 국내외 진단 참고 준위와 비교 -

  • Lee, Won-Jeong (Department of Radiological Technology, Daejeon Health Science College)
  • 이원정 (대전보건대학교 방사선과)
  • Received : 2014.07.09
  • Accepted : 2014.12.05
  • Published : 2014.12.30


We report here on the results of evaluating the radiation doses using chest computed tomography (CT) for patients with pneumoconiosis complication. For the first time, we visited the 17 MIPs to evaluate the dose-length product (DLP, $mGy{\cdot}cm$), CT unit, and protocols of scanning and image reconstruction those is routinely used for treating patients with pneumoconiosis who have complication. All statistical analysis was performed using the Statistical Program for Social Sciences (SPSS ver. 19.0, Chicago, IL, USA). Mean of total DLP was $727.7mGy{\cdot}cm$, ranging from 272.0 to $1228.7mGy{\cdot}cm$. DLP from obtaining parenchymal lung images was significantly reduced than that from obtaining total lung images (555.9 vs. 707.2, p<0.001). Third quartile of total and pre-scanning DLP was 1036.1 and $504.1mGy{\cdot}cm$, respectively. Chest CT radiation doses for patients with pneumoconiosis complication are similar with korean diagnostic reference level as well as international guidelines.


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