소아 환자에서 방사선 차폐체로 인한 피폭선량과 화질의 변화 = Changes in Exposure Dose and Image Quality due to Radiation Shielding in Pediatric Patients

국문 초록 (Abstract)

본 연구는 자동노출선량장치을 사용했을 때 생식선 차폐체의 유무와 크기 변화에 따른 소아 환자의 방사선 피폭선량과 화질의 변화를 관찰하기 위하여 수행되었다. X-ray 장비를 이용하여 소아 팬텀의 복부와 생식선에서 차폐체가 없을 때와 3가지 크기의 차폐체를 사용했을 때의 방사선 피폭선량을 측정하였으며, 얻어진 영상을 통하여 SNR과 CNR을 측정하였다. 연구 결과 방사선 차폐체의 크기에 비례하여 생식선의 방사선 피폭선량은 감소하였으나 복부의 방사선 피폭선량은 오히려 증가되는 것으로 나타났으며 화질의 변화는 나타나지 않았다. AEC System 사용으로 인하여 방사선 차폐체로 인하여 증가된 방사선으로 인하여 과 피폭되지 않도록 소아 환자의 연령과 몸무게, 신체 크기에 최적화된 크기의 차폐체를 사용하는 것이 효과적이라는 것을 확인할 수 있었다.

다국어 초록 (Multilingual Abstract)

This study was conducted to observe the changes in radiation exposure dose and image quality of pediatric patients according to the presence and size of the gonadal shield when using the AEC system. X-ray equipment was used to measure the radiation exposure dose in the abdominal and gonads of the pediatric phantom when no shielding body was used and when three different sizes of shielding body were used, and SNR and CNR were measured through the obtained images. As a result of the study, the radiation exposure dose to the gonads decreased in proportion to the size of the radiation shield, but the radiation exposure dose to the abdomen was rather increased, and the image quality did not change. It is recommended to use a shield with a size optimized for the age, weight, and body size of the pediatric patient so as not to be overexposed by the increased radiation due to the radiation shield due to the use of the AEC System. For this purpose, information about the pediatric patient with the nurse It is believed that exchange is necessary.

목차 (Table of Contents)

• Ⅰ. INTRODUCTION Ⅱ. MATERIAL AND METHODS Ⅲ. RESULTS Ⅳ. DISCUSSIONS Ⅴ. CONCLUSIONS Reference

참고문헌 (Reference)

1 박혁, "중재적 시술에 사용하는 조영제의 요오드(53I) 함유량 차이에 따른 피폭선량 평가" 한국콘텐츠학회 14 (14): 337-345, 2014

2 곽종혁, "유아기 여아의 생식선 차폐체 제작을 위한 골반 지표 계측" 한국방사선학회 10 (10): 101-107, 2016

3 이진수, "변형근치유방절제술 환자의 Ion chamber 변화에 따른 디지털 흉부 영상의 화질 평가" 한국콘텐츠학회 13 (13): 204-210, 2013

4 S. H. Chui, "Usability evaluation through gonad shielding production of pediatric patients by gender and age rating" 9 (9): 69-75, 2015

5 S. L. Fawcett, "The use of gonad shielding in paediatric hip and pelvis radiographs" 82 (82): 363-370, 2009

6 Manoj Sikand, "Study on the use of gonadal protection shields during paediatric pelvic X-rays" Royal College of Surgeons of England 85 (85): 422-425, 2003

7 UNSCEAR, "Sources and effects of ionization radiation, Annex D Medical Radiation Exposure" 2000

8 ICRP, "Recommendations of International Commission on Radiological Pretection" Pergamon Press 1991

9 ICRP, "Radiological Protection and Safety in Medicine" Pergamon Press 1996

10 ICRP, "Protection of the Patient in Diagnostic Radiology, ICRP Publication 34" 9 (9): 1982

11 NATIONAL RESEARCH COUNCIL, "Health risks from exposure to low levels of ionizing radiation : BEIR VII phase 2" National Academies Press 2006

12 Marij J. Frantzen, "Gonad shielding in paediatric pelvic radiography: disadvantages prevail over benefit" Springer Science and Business Media LLC 3 (3): 23-32, 2012

13 Sinead E. Peters, "Digital radiography: are the manufacturers' settings too high? Optimisation of the Kodak digital radiography system with aid of the computed radiography dose index" Springer Science and Business Media LLC 12 (12): 2381-2387, 2002

14 양현진, "DR 시스템에서 화질 개선을 위한 VGR 알고리즘의 유용성에 관한 연구" 한국방사선학회 14 (14): 763-772, 2020

15 G. Compagnone, "Comparison of radiation doses to patients undergoing standard radiographic examinations with conventional screen-film radiography computed radiography and direct digital radiography" 79 (79): 899-904, 2006

16 K K Fung, ""Anode heel effect" on patient dose in lumbar spine radiography." British Institute of Radiology 73 (73): 531-536, 2000