Diagnostic Value of MR Imaging in Differentiation of Meniscal Tear Patterns.
10.3348/jkrs.1999.41.1.159
- Author:
Dong Jin JUN
1
;
Won Hee JEE
;
Young Joon LEE
;
Kyu Ho CHOI
Author Information
1. Department of Radiology, The Catholic University of Korea.
- Publication Type:Original Article
- Keywords:
Knee, MR;
Knee, ligaments, menisci, and cartilage;
Magnetic resonance (MR), technology
- MeSH:
Humans;
Knee;
Magnetic Resonance Imaging*;
Sensitivity and Specificity
- From:Journal of the Korean Radiological Society
1999;41(1):159-164
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the diagnostic accuracy of magnetic resonance (MR) imaging in the differentiation ofmeniscal tear patterns of the knee. MATERIALS AND METHODS: MR images of 93 patients with meniscal tear wereincluded in this study. On the basis of arthroscopic findings, the configuration of meniscal tears was classifiedas horizontal (n=44), longitudinal (n=34), transverse (n=11), or oblique (n=5). Oblique sagittal and coronal MRimages were obtained and com-pared with the arthroscopic findings. RESULTS: Among 94 cases ofarthroscopically-proven meniscal tears, 35 of 44 horizontal and 27 of 34 longitudi-nal configurations werecorrectly interpreted on MR images. Sensitivity and specificity for horizontal configu-ration were 80 % and 80 %,respectively, while the corresponding values for longitudinal configuration were 79 % and 95 %. On MR images, tworadial configurations were correctly interpreted from 11 confirmed tears and only one oblique configuration fromfive confirmed tears. CONCLUSION: MR imaging was useful for the differentiation of horizontal and longitudinaltears, but inaccurate in cases involving radial or oblique tears.
