In this work, we present the first triple quantum filtered (TQF) sodium MR images of the human knee joint in vivo. A 3D TQF data set of 16 slices was obtained in 20 min using a TQF pulse sequence preencoded to a twisted projection imaging readout. Images clearly demarcate patellar cartilage and also
Sodium MRI of human articular cartilage in vivo
✍ Scribed by Dr. Ravinder Reddy; Erik K. Insko; Elizabeth A. Noyszewski; Rahul Dandora; John B. Kneeland; John S. Leigh
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 555 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Preliminary results from in vivo sodium MRI of human patellar articular cartilage are presented. Sodium images generated of an in vitro bovine patella clearly distinguish the region of proteoglycan depletion from the region of healthy cartilage. This provides the first evidence that sodium imaging may be used to detect changes due to osteoarthritis in vivo. The process of optimizing imaging time and signal‐to‐noise ratio, as well as potential implications in the detection of osteoar‐thritic change, are discussed.
📜 SIMILAR VOLUMES
## Abstract The authors report, for the first time, sodium properties of human articular cartilage __in vivo__ using sodium multiple‐quantum‐filtered methods with a surface coil. A flip angle‐independent, phase‐cycled pulse sequence was used to obtain triple‐quantum‐filtered spectra as a function o
## Abstract The techniques and uses of MRI in current clinical practice, primarily as a means to detect morphologic abnormalities, are reviewed. Ongoing development of techniques that can improve morphologic assessment including techniques to increase spatial and contrast resolution is discussed, a
Previous laboratory measurements showed topographical variation in the properties of articular cartilage in several animal species and in humans. In this study we characterize for the first time the topographical variation of the stiffness of the human knee articular cartilage in vivo using a novel