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간 전이환자에서 최적의 펄스시퀀스에 따른 SPIO 특이성 조영제의 국소병변검출 : Case review
Focal Lesion Detection of SPIO-specific agent Compared with Optimized Pulse Sequences in the Hepatic Metastases : Case Review
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- 발행기관
- 대한디지털의료영상학회 바로가기
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- 간행물
- 대한디지털의료영상학회논문지 바로가기
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- 통권
- Volume 14 Number 2 (2012.10)바로가기
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- 페이지
- pp.57-61
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- 저자
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- 언어
- 한국어(KOR)
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- URL
- https://www.earticle.net/Article/A483040
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원문정보
초록
- 영어
- To compare the accuracy of breath-hold magnetic resonance imaging sequences to establish the most effective superparamagnetic iron oxide–enhanced sequence for detection of hepatic metastases. A total of 100 patients(50men and 50women, mean age: 60years) with liver disease(including malignant and benign liver lesions) were investigated at 3.0T machine (GE, General Electric Medical System, Excite HD) with 8Ch body coil. Pulse sequence for MR imaging decided to the FS-T2-FSE-RT(TR/TE/Thick./Freq./ Phase=12857ms/100ms/7mm/512/384),MGRE(TR/TE/Thick./Freq./Phase=100ms/9.7ms/7mm/384/288), in-out of phase echo(TR/TE1, TE2/Thick./Freq./Phase=140ms/2.4, 5.8ms/7mm/352/300), Images obtained before the injection of SPIO. Six sequences were optimized for lesion detection: FS-T2-FSE-RT, multigradient recalled echo data image(MGRE), T2-weighted MGRE with an 9.7msec echo time. Images were reviewed independently by five blinded observers. The accuracy of each sequence was measured by using picture archiving communication system analysis. All results were correlated with findings at multidectator computed tomography examination. Differences between the mean results of the six observers were measured by using paired student t-test analysis. Postcontrast T2-weighted MGRE sequences were the most accurate and were significantly superior to postcontrast FS-T2-FSE-RT, T2-weighted MGRE, in-out of phase MR sequences(p < .05). For all lesions that were malignant or smaller than 1 cm, respectively, contrast to noise ratio of pre and postcontrast sequences were -1and -0.3 for T2-weighted FSE, 0.53 and 4.5 in-out of phase, 7, 7.08, 5.08, 3.32, 1.7, 1.16, 0.79, 0.68 for GRE with 2.9, 7.5, 12.1, 16.6, 21.2, 25.8, 30.4, 35.0 TE values. Breath-hold various TE precontrast sequences offer improvement in sensitivity compared with fixed multigradient recalled echo sequences alone.
목차
Abstract
Ⅰ. 서론
Ⅱ. 대상 및 방법
Ⅲ. 결과
IⅤ. 고찰
V. 결론
참고문헌
키워드
Multi-gradient recalled echo Fast spin echo In-out of phase저자
간행물 정보
발행기관
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- 발행기관명
- 대한디지털의료영상학회 [대한디지털의료영상학]
- 설립연도
- 1995
- 분야
- 의약학>방사선과학
- 소개
- 대한디지털의료영상학회는 디지털 영상 기술에 관한 연구와 실험 결과를 임상에 적용하여 영상의학 및 진단 방사선 기술 분야의 발전에 기여함을 목적으로 한다.
간행물
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- 간행물명
- 대한디지털의료영상학회논문지 [Korean Journal of Digital Imaging in Medicine]
- 간기
- 연3회
- pISSN
- 1976-7641
- 수록기간
- 1995~2025
- 십진분류
- KDC 510 DDC 610
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