MDCT을 이용한 Cardica CT 검사에서 ECG-pulsing기능의 사용 경험 및 고찰

• 영문명: The using experiences and consideration of the ECG-pulsing method in Cardiac CT using MDCT
• 발행기관: 대한CT영상기술학회
• 저자명: 박현(Hyeok Park) 이현성(Hyun Seong Lee) 김태성(Tae Seong Kim) 안인현(In Hyun An) 최남길(Nam Kil Choi)
• 간행물 정보: 『대한CT영상기술학회지』대한전산화단층기술학회지 제10권 제1호, 159~162쪽, 전체 4쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2008.04.30

영문 초록

Purpose Cardiac CT comparing with other region’s same scan range very much radiation dose. so, I wanted to know the method which can reduce radiation dose through the effective methode of ECG-pulsing method. Materials and Methods I performed the test of patients which were prescribed for Cardiac CT because of chest pain, etc. I measured patients’ heart rate before the test. When their heart rate was more than 65 times, I used the ‘B-Blocker and I analyzed the use probability and success rates of ECG-pulsing, DPL and the optimum image reconstruction data. Results Among the 200 patients, I used the ECG-pulsing in 136 cases (68%) and DPL (mSv-cm) value was from 513 to 836 (mean value : 649). Ca scoring was from 44 times to 65 times (the mean : 57 times) in HR and from 36 times to 69 times (the mean : 53 times) in CTA. I didn’t use the ECG-pulsing in 62 cases (32%). DPL (mSv-cm) value was from 922 to 1320 and mean value was 1074. Ca scoring was from 53 times to 90 times (the mean : 66 times) in HR and from 38 times to 73 times (the mean : 59 times) in CTA. I didn’t the ECG-pulsing method because when I got the Ca scoring data, mostly BPM’s maximum was more than 64 (46cases, 73%). Image reconstruction R-R interval was shown from 65% to 69%. Conclusion When I used the ECG-pulsing method, DPL dose decreased by 39.6% than I didn’t use that. With the recent development of CT equipment, I recommend much use of the ECG-pulsing method because I think that the use of ECG-pulsing method has radiation dose decreased without a drop in image quality through the supplement of diverse ECG-pulsing methods and the maximum use of ECG-pulsing in fast CT.

목차

Abstract

I. 서론

II. 대상 및 방법

III. 결과

IV. 고찰 및 결론

참고문헌

키워드

Cardica CT ECG-pulsing method MDCT