Publications

BibTex format

@article{Staroswiecki:2010:10.1002/jmri.22191,
author = {Staroswiecki, E and Bangerter, NK and Gurney, PT and Grafendorfer, T and Gold, GE and Hargreaves, BA},
doi = {10.1002/jmri.22191},
journal = {Journal of Magnetic Resonance Imaging},
pages = {446--451},
title = {In vivo sodium imaging of human patellar cartilage with a 3D cones sequence at 3 T and 7 T},
url = {http://dx.doi.org/10.1002/jmri.22191},
volume = {32},
year = {2010}
}

Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:title>Abstract</jats:title><jats:sec><jats:title>Purpose:</jats:title><jats:p>To compare signaltonoise ratios (SNRs) and T<jats:sub>2</jats:sub> maps at 3 T and 7 T using 3D cones from in vivo sodium images of the human knee.</jats:p></jats:sec><jats:sec><jats:title>Materials and Methods:</jats:title><jats:p>Sodium concentration has been shown to correlate with glycosaminoglycan content of cartilage and is a possible biomarker of osteoarthritis. Using a 3D cones trajectory, 17 subjects were scanned at 3 T and 12 at 7 T using custommade sodiumonly and dualtuned sodium/proton surface coils, at a standard resolution (1.3 × 1.3 × 4.0 mm<jats:sup>3</jats:sup>) and a high resolution (1.0 × 1.0 × 2.0 mm<jats:sup>3</jats:sup>). We measured the SNR of the images and the T<jats:sub>2</jats:sub> of cartilage at both 3 T and 7 T.</jats:p></jats:sec><jats:sec><jats:title>Results:</jats:title><jats:p>The average normalized SNR values of standardresolution images were 27.1 and 11.3 at 7 T and 3 T. At high resolution, these average SNR values were 16.5 and 7.3. Image quality was sufficient to show spatial variations of sodium content. The average T<jats:sub>2</jats:sub> of cartilage was measured as 13.2 ± 1.5 msec at 7 T and 15.5 ± 1.3 msec at 3 T.</jats:p></jats:sec><jats:sec><jats:title>Conclusion:</jats:title><jats:p>We acquired sodium images of patellar cartilage at 3 T and 7 T in under 26 minutes using 3D cones with high resolution and acceptable SNR. The SNR improvement at 7 T over 3 T was within the expected range based on the increase in field strength. The measured T<jats:sub>2</jats:sub> values were also consistent with previously published values. J. Magn. Reson. Imaging 2010;32:446–451. © 2010
AU  - Staroswiecki,E
AU  - Bangerter,NK
AU  - Gurney,PT
AU  - Grafendorfer,T
AU  - Gold,GE
AU  - Hargreaves,BA
DO  - 10.1002/jmri.22191
EP  - 451
PY  - 2010///
SN  - 1053-1807
SP  - 446
TI  - In vivo sodium imaging of human patellar cartilage with a 3D cones sequence at 3 T and 7 T
T2  - Journal of Magnetic Resonance Imaging
UR  - http://dx.doi.org/10.1002/jmri.22191
UR  - https://doi.org/10.1002/jmri.22191
VL  - 32
ER  -

Download

Publications

Citation

BibTex format

RIS format (EndNote, RefMan)

Contact