๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Sodium multiple quantum spectroscopy of articular cartilage: Effects of mechanical compression

โœ Scribed by Umamaheswar Duvvuri; Jonathan H. Kaufman; Saurabh D. Patel; Lizann Bolinger; J. Bruce Kneeland; John S. Leigh; Ravinder Reddy

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
511 KB
Volume
40
Category
Article
ISSN
0740-3194

No coin nor oath required. For personal study only.

โœฆ Synopsis

The effects of mechanical compression on the multiple quantum coherences generated from sodium ions in articular cartilage were investigated. Cartilage samples obtained from bovine patellae were studied during compression at 0.7 MPa (100 psi) for 1 hour. The double quantum filtered spectra showed marked lineshape changes in the compressed samples. Compression did not seem to influence the lineshapes of the single quantum and triple quantum filtered spectra significantly. We found that the residual quadrupolar interaction was reduced in the compressed samples. Changes in the ordering of collagen fibers may be responsible for the observed effect.

๐Ÿ“œ SIMILAR VOLUMES

In Vivo sodium multiple quantum spectros
In Vivo sodium multiple quantum spectroscopy of human articular cartilage
โœ Ravinder Reddy; Shuchun Li; Elizabeth A. Noyszewski; J. Bruce Kneeland; John S. ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 671 KB

## Abstract The authors report, for the first time, sodium properties of human articular cartilage __in vivo__ using sodium multipleโ€quantumโ€filtered methods with a surface coil. A flip angleโ€independent, phaseโ€cycled pulse sequence was used to obtain tripleโ€quantumโ€filtered spectra as a function o

Triple quantum sodium imaging of articul
Triple quantum sodium imaging of articular cartilage
โœ Ravinder Reddy; Erik K. Insko; John S. Leigh ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 566 KB

## Abstract Triple quantum (TQ) sodium imaging of bovine articular cartilage is presented. True triple quantum imaging sequence was modified to incorporate asymmetric echo acquisition. Triple quantum signal expression in the presence of residual quadrupolar interaction is presented. The filtering c

Effects of multiple chondroitinase ABC a
Effects of multiple chondroitinase ABC applications on tissue engineered articular cartilage
โœ Roman M. Natoli; Donald J. Responte; Benjamin Y. Lu; Kyriacos A. Athanasiou ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 224 KB

## Abstract Increasing tensile properties and collagen content is a recognized need in articular cartilage tissue engineering. This study tested the hypothesis that multiple applications of chondroitinase ABC (Cโ€ABC), a glycosaminoglycan (GAG) degrading enzyme, could increase construct tensile prop

In Vivo Triple Quantum Filtered Twisted
In Vivo Triple Quantum Filtered Twisted Projection Sodium MRI of Human Articular Cartilage
โœ Arijitt Borthakur; Ileana Hancu; Fernando E. Boada; Gary X. Shen; Erik M. Shapir ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 150 KB

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

The effects of focal articular defects o
The effects of focal articular defects on cartilage contact mechanics
โœ Kenneth R. Gratz; Benjamin L. Wong; Won C. Bae; Robert L. Sah ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 424 KB ๐Ÿ‘ 1 views

## Abstract Focal damage to articular cartilage is common in arthroscopy patients, and may contribute to progressive tissue degeneration by altering the local mechanical environment. The effects of a focal defect, which may be oriented at various orientations relative to the subchondral bone, on th