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논문 기본 정보

자료유형
학술저널
저자정보
심용운 (연세대학교 의과대학 진단방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제34권 제6호
발행연도
1996.1
수록면
831 - 836 (6page)

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Purpose : To assess the role of contrast-enhanced dynamic Magnetic Resonance Imaging in evaluating disease activity of rheumatoid arthritis. Materials and Methods : Forty-seven wrist joints with rheumatoid arthritis were examined prospectively. coronal images of the wrist were obtained using fat-suppression Fast multi-planar spoiled gradient recalled(FMPSPGR) acquisition in the steady state ; TR/TE=102/6.4msec, flip angle=60.4 slices per sequence, FOV=8cm, matrix=256X192 at 1.5 Tesla. Scans were carried out once before and five to eight times after an intravenous Gd-DPTA injection, at 30-second-intervals. The enhancement of synovium were measured, the enhancement ratio was calculated(postcontrast SNR/precontrast SNR) and time-enhancement ratio curves were plotted patients were divided into three groups according to the ratio of initial to peak enhancement: less than 30%; 30-80%; more than 80%. Differences among the three groups were statistically tested using clinical indices and laboratory data as variables. Results : Comparing one group with another, there were no significant differences in clinical indices and laberatory data except for the parameter of grip strength. Conclusion : Enhancement pattern measured in a single wrist joint was not comparable to a clinical index in predicting disease activity in rheumatoid arthritis.

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