Earticle

초록

영어

Background: We aimed to evaluate the effects of different incident directions on organ-absorbed doses, effective doses, and effective dose conversion coefficients for chest radiography. Materials and Methods: We constructed an examination environment for chest radiography using a Monte Carlo simulation and estimated the organ-absorbed doses and effective doses for frontal anterior–posterior (AP), frontal posterior–anterior (PA), left lateral, and right lateral radiography. The effective dose conversion coefficients were calculated using the air kerma-area product. Results and Discussion: Some organs, such as the breast, showed more than a fivefold difference in the organ-absorbed dose between AP and PA radiography. In lateral radiography, there was a large difference in the organ-absorbed doses in the abdominal region. The effective dose was approximately 30% higher for AP radiography than for PA radiography. The effective dose conversion coefficients differed between AP and PA radiography. These findings are consistent with the anatomical arrangement of organs in the human body; nevertheless, they have not been explicitly reported in previous studies. Conclusion: It was suggested that using the PA direction of incidence in frontal radiography reduces the effective dose received by the patient. In addition, when estimating the effective dose using conversion coefficients, the estimated value may differ significantly due to differences in the direction of incidence, so the coefficients must be appropriately selected.

목차

ABSTRACT
Introduction
Materials and Methods
1. Setting up a Monte Carlo simulation
2. Estimation and Evaluation of Organ-Absorbed Dose
3. Estimation and Evaluation of Effective Dose and Effective Dose Conversion Coefficient
Results
1. Evaluation of Organ-Absorbed Dose
2. Evaluation of Effective Dose and Effective Dose Conversion Coefficient
Discussion
Conclusion
Article Information

키워드

저자

• Koji Ono [ Department of Radiological Technology, Ichinomiya Municipal Hospital, Aichi, Japan; Graduate School of Health Sciences, Fujita Health University, Aichi, Japan ] Corresponding Author
• Yasuki Asada [ Faculty of Radiological Technology, School of Medical Science, Fujita Health University, Aichi, Japan ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사선방어학회지 [Journal of Radiation Protection and Research]

• 간기

  계간

• pISSN

  2508-1888

• 수록기간

  1976~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 559 DDC 629