[논문]심장동맥 조영 검사 시 검사 조건에 따른 환자 선량 평가

조용인

doi:10.17946/jrst.2023.46.6.509

심장동맥 조영 검사 시 검사 조건에 따른 환자 선량 평가
Evaluation of Radiation Dose to Patients according to the Examination Conditions in Coronary Angiography 원문보기

방사선기술과학 = Journal of radiological science and technology, v.46 no.6, 2023년, pp.509 - 517

조용인 (부산가톨릭대학교 보건과학대학 방사선학과)

Abstract ▼ AI-Helper

This study analyzed imaging conditions and exposure index through clinical information collection and dose calculation programs in coronary angiography examinations. Through this, we aim to analyze the effective dose according to examination conditions and provide basic data for dose optimization. In this study, ALARA(As Low As Reasonably Achievable)-F(Fluoroscopy), a program for evaluating the radiation dose of patients and the collected clinical data, was used. First, analysis of imaging conditions and exposure index was performed based on the data of the dose report generated after coronary angiography. Second, after evaluating organ dose according to 9 imaging directions during coronary angiography, with the LAO fixed at 30°, dose evaluation was performed according to tube voltage, tube current, number of frames, focus-skin distance, and field size. Third, the effective dose for each organ was calculated according to the tissue weighting factors presented in ICRP(International Commission on Radiological Protection) recommendations. As a result, the average sum of air kerma during coronary angiography was evaluated as 234.0±112.1 mGy, the dose-area product was 25.9±13.0 Gy·cm2, and the total fluoroscopy time was 2.5±2.0 min. Also, the organ dose tended to increase as the tube voltage, milliampere-second, number of frames, and irradiation range increased, whereas the organ dose decreased as the FSD increased. Therefore, medical radiation exposure to patients can be reduced by selecting the optimal tube voltage and field size during coronary angiography, maximizing the focal-skin distance, using the lowest tube current possible, and reducing the number of frames.

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참고문헌 (16)

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심장동맥 조영 검사 시 검사 조건에 따른 환자 선량 평가
Evaluation of Radiation Dose to Patients according to the Examination Conditions in Coronary Angiography 원문보기

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연합인증

심장동맥 조영 검사 시 검사 조건에 따른 환자 선량 평가 Evaluation of Radiation Dose to Patients according to the Examination Conditions in Coronary Angiography 원문보기

Abstract ▼ AI-Helper

주제어

참고문헌 (16)

이 논문을 인용한 문헌

관련 콘텐츠

원문 보기

원문 URL 링크

오픈액세스(OA) 유형

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심장동맥 조영 검사 시 검사 조건에 따른 환자 선량 평가
Evaluation of Radiation Dose to Patients according to the Examination Conditions in Coronary Angiography 원문보기