CT 조영제가 MR 조영제의 이완율에 미치는 영향

• 영문명: Effects of CT Contrast Medium on the Relaxation Rate of MR Contrast Medium
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 권순용(Kwon Soon-Yong) 강충환(Kang Chung-Hwan) 정현근(Jeong Hyeon Keum) 박진서(Park Jin Seo) 김성호(Kim Seong-Ho)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제41권 제2호, 103~108쪽, 전체 6쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2018.04.30

국문 초록

In MR, the iodine CT contrast medium reduces the T1 and T2 relaxation times of the substance, resulting in a change in signal intensity. This study aimed to measure the relaxation rate of MR contrast medium with or without dilut-ing CT contrast medium and analyzed the effect of CT contrast medium. Undiluted Gadoteridol solution was diluted with saline to prepare MR contrast medium phantoms with various levels of Gadoteridol concentrations. Moreover, undiluted Iomeprol was mixed with the prepared MR contrast medium phantoms at 1:1 ratio to make MR contrast medium phan-toms with containing CT contrast medium for the experiment. T1 and T2 mappings were conducted to quantitatively eval-uate the relaxation time and relaxation rate of these phantoms. The results showed that the T1 and T2 relaxation time and relaxation rate of MR contrast medium diluted with CT contrast medium were significantly (p<0.05) shorter than those of MR contrast medium not diluted with CT contrast medium. The results of this study imply that, when MR contrast me-dium shall be used after injecting CT contrast medium, CT contrast medium should be discharged enough. Moreover, it would be desirable to conduct CT test after taking MRI test in order to reduce the effects of CT contrast medium on MR contrast medium.

목차

Ⅰ. 서 론

Ⅱ. 대상 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

키워드

MR contrast agent CT contrast agent Relaxation rate Relaxation time Contrast MR 조영제 CT 조영제 이완율 이완시간 대조도