MR relaxometry on a whole-body imager: quality control
Language English Country Netherlands Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
10463661
DOI
10.1016/s0730-725x(99)00045-4
PII: S0730-725X(99)00045-4
Knihovny.cz E-resources
- MeSH
- Phantoms, Imaging MeSH
- Magnetic Resonance Spectroscopy instrumentation methods MeSH
- Reproducibility of Results MeSH
- Quality Control MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Long-term monitoring of the average proton relaxation time T2 of phantoms measured on a Siemens MR whole-body imager showed very good repeatability and reproducibility. The repeatability (short-term precision) and reproducibility (long-term precision) of the average values of a relaxation time T2 approximately/= 81 ms, obtained by a standard 16-echo CPMG pulse sequence, were 2.6% and 9.7%, respectively. The Siemens Vision imager proved to be a suitable tool for T2 evaluation in vivo. Quality control was performed using the techniques of control diagrams developed by Shewhart, which proved to be an appropriate method for continuous quality control of relaxation time determination.
References provided by Crossref.org
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