Dual Source CT에서 Coronary검사의 방사선량 비교분석

• 영문명: Comparison to the Radiation Dose of Dual Source Spiral and Sequential scan in coronary Study
• 발행기관: 대한CT영상기술학회
• 저자명: 신용환(Yong Hwan Shin) 안병환(Byoung Hwan Ahn) 옥승호(Seung Ho Ock) 권오성(Oh Sung Kwon) 임흥선(Heung Seon IM) 김명구(Myeong Goo Kim)
• 간행물 정보: 『대한CT영상기술학회지』대한전산화단층기술학회지 제10권 제1호, 55~60쪽, 전체 6쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2008.04.30

영문 초록

Purpose This Paper compared the Radiation Dose of Dual Source ECG-gating Spiral Scan and ECG-triggered Sequential Scan in coronary CT. and Analysed how much the Radiation dose reduced in sequential scan. Materials and Methods We studied Spiral and Sequential scan in Phantoms and used by Dual source MDCT called Definition. Scan was made as follows;(Spiral scan:Kvp/mAs/Rotation time/Pitch/Scan time/=100/320/0.33/0.28/8.82, Sequential scan: Kvp/mAs/Table feed/Cycle time/Scan time =100/180/20/1.37/8.22). We used ECG Simulator as equipment( NETECH) Contrast media diluted (CM :1, Normal saline:24) An Experimental method compared CIDivol and CIDIDlP with Spiral and Sequential scan and were measured. Qualitive analysis evaluate the CTDIvol, and CTDIDLP, and SNR through ROI analysis. Quantitative analysis evaluate the Uniformity and noise, Preference Results The results obtained as follows; Radiation dose reduced about 28.8% in Sequential scan than Spiral scan. SNR increased in Spiral scan than Sequential scan. The image Qualities with Sequential scan showed better than Spiral scan. Conclusion In conclusion, by comparing the Phantoms image with Spiral scan and Sequential Radiation dose reduced in Sequential scan. If used and selected properly Sequential scan useful clinically applied to the patients with coronary Disease. (Heart Rate <60-65bpm)

목차

Abstract

I. 목적

II. 연구내용 및 방법

III. 결과

IV. 고찰

V. 결론

참고문헌

키워드

Dual source CT