Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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A Study of the Patient Dose in Chest Radiography

흉부(胸部) X선검사시(線檢査時) 환자(患者)의 피폭선양(被曝線量)에 대(對)한 연구(硏究)

  • Kim, Chang-Kyun (Dept. of Radiotechnology, Junior College of Public Health and Medical Technology, Korea University)
  • 김창균 (고려대학교 보건전문대학 방사선과)
  • Published : 1990.05.01
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Abstract

A study was carried out to investigate the technical factors and the patient dose (entrance and absorbed dose) in chest P-A radiography based on the 86 hospitals in Seoul from July 1 to July 30, 1989. As a result of this study, main finding were as follow : 1. 51.2% of the surveyed hospitals made use of $60{\sim}69\;kVp$ as tube voltage in chest radiography 2. The majority of the surveyed(88.3%) have the use of $6{\sim}20\;mAs$ as tube current-time. 3. Percentage absorbed doses in patient were showed more than 90 percent in every tube voltage. 4. Object densities were all much the same in all tube voltages. 5. 48.8% of surveyed entrance doses ranged from $100\;{\mu}Sv$ to $190\;{mu}Sv$, and the mean dose was $158\;{\mu}Sv$.

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