Spatial variation in cartilage T2 of the knee
Article first published online: 26 JUN 2001
Copyright © 2001 Wiley-Liss, Inc.
Journal of Magnetic Resonance Imaging
Volume 14, Issue 1, pages 50–55, July 2001
How to Cite
Smith, H. E., Mosher, T. J., Dardzinski, B. J., Collins, B. G., Collins, C. M., Yang, Q. X., Schmithorst, V. J. and Smith, M. B. (2001), Spatial variation in cartilage T2 of the knee. J. Magn. Reson. Imaging, 14: 50–55. doi: 10.1002/jmri.1150
- Issue published online: 26 JUN 2001
- Article first published online: 26 JUN 2001
- Manuscript Accepted: 27 DEC 2000
- Manuscript Received: 14 JUL 2000
- Arthritis Foundation
- high-field MRI
Technical limitations imposed by resolution and B1 homogeneity have thus far limited quantitative in vivo T2 mapping of cartilage to the patella. The purpose of this study is to develop T2 mapping of the femoral/tibial joint and assess regional variability of cartilage T2 in the knee. Quantitative in vivo T2 mapping of the knee was performed on 15 asymptomatic adults (age, 22–44) using a 3T MR scanner. There is a consistent pattern of spatial variation in cartilage T2 with longer values near the articular surface. The greatest variation occurs in the patella, where T2 increases from 45.3 ± 2.5 msec at a normalized distance of 0.33–67 ± 5.5 msec at a distance of 1.0. These results demonstrate feasibility of performing in vivo T2 mapping of femoral tibial cartilage. Except for the superficial 15% where T2 values are lower, the spatial variation in T2 of femoral and tibial cartilage is similar to patellar cartilage. J. Magn. Reson. Imaging 2001;14:50–55. © 2001 Wiley-Liss, Inc.