## Abstract ## Purpose To determine if gender is a significant variable for in vivo magnetic resonance imaging (MRI) T2βmapping of knee articular cartilage in young asymptomatic volunteers. ## Materials and Methods Cartilage MRI T2 mapping was performed in a young healthy population consisting o
Effect of ovariectomy on magnetic resonance T2* in rat femur
β Scribed by David Checkley; Andrew J. Millest; Donna Johnstone; John C. Waterton
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 475 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Measurements have been made in the rat femur in vivo and ex vivo by using an asymmetric spin echo technique of T~2β²~, the susceptibility contribution to T~2~*. The trabecular spacing in this study in rat bone is considerably less than in previous studies in the human. A significant increase in T~2β²~ was seen in vivo 3 mm proximal to the growth plate with ovariectomy (a model of osteopenia), from 8.1 Β± 0.7 to 10.0 Β± 0.6 ms. Parallel changes in trabecular bone mineral density measured by quantitative computed tomography were found. T~2β²~ was higher in living bones than in the same bones measured post mortem.
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