안와 전산화단층촬영검사 시 수정체 선량감소 방법과 영상 평가

• 영문명: Lens Dose Reduction Methods and Image Quality in Orbital Computed Tomography Scan
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 문세영(Se-Young Moon) 홍상우(Sang-Woo Hong) 서지숙(Ji-Sook Seo) 김영범(Yeong-Beom Kim) 곽완신(Wan-Sin Kwak) 이성영(Seong-Yeong Lee) 김정수(Jung-Soo Kim)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제43권 제5호, 343~351쪽, 전체 9쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2020.10.30

영문 초록

This study analyzed dose reduction and quality of images through dose reduction tools and shielding board to protect sensitive eye lens in radiation during orbit CT examinations for clinical data use. During CT scans of the phantom, surface dose (CT scanner dosimetry phantom, ion chamber-3 times) and quality of image (radiosurgery head phantom, visual assessment-2 times, HU standard deviation) were evaluated using X-care which is dose reduction tools and bismuth shielding board. The results of experiments of eight conditions showed a relatively reduced dose in all other conditions compared to when no conditions were set. In particular, the area corresponding to the ophthalmic part reduced the surface dose by up to 45.7 %. The visual evaluation of images by specialists and the quality evaluation of images analyzed by HU standard deviation were clinically closest to the use of X-care and shielding board (1 cm in height). Therefore, it is believed that the use of shielding board in a suitable location with dose reduction tools while investigating the optimal radiation dose will reduce the exposure dose of sensitive lens at radiation while maintaining the quality of the images with high diagnostic value.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

REFERENCES

키워드

수정체선량 X-care 모드 비스무스 차폐체 선량감소 화질 Lens dose X-CARE mode Bismuth shield Dose reduction Image quality