Clinical Significance of Dynamic Magnetic Resonance imaging in the Evaluation of Wrist Joint in Rheumatoid Arthritis.
10.3348/jkrs.1996.34.6.831
- Author:
Yong Woon SHIM
1
;
Jin Suck SUH
;
Jae Hyun CHO
;
Soo Kon LEE
;
Ji Soo LEE
Author Information
1. Department of Diagnostic Radiology, Yonsei University Medical College, Korea.
- Publication Type:Original Article
- Keywords:
Arthritis, rheumatoid;
Joints, MR;
Wrist, MR;
Wrist, arthritis
- MeSH:
Arthritis, Rheumatoid;
Hand Strength;
Magnetic Resonance Imaging*;
Prospective Studies;
Synovial Membrane;
Wrist Joint*;
Wrist*
- From:Journal of the Korean Radiological Society
1996;34(6):831-836
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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=102/6.4m sec, flip angle=60.4 slices persequence, 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 inital to peak enhancement: less than 30%; 30-80%; morethan 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.
