| pubmed-article:12762988 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:12762988 | lifeskim:mentions | umls-concept:C0011923 | lld:lifeskim |
| pubmed-article:12762988 | lifeskim:mentions | umls-concept:C0085089 | lld:lifeskim |
| pubmed-article:12762988 | lifeskim:mentions | umls-concept:C0034107 | lld:lifeskim |
| pubmed-article:12762988 | lifeskim:mentions | umls-concept:C0043100 | lld:lifeskim |
| pubmed-article:12762988 | lifeskim:mentions | umls-concept:C1947976 | lld:lifeskim |
| pubmed-article:12762988 | pubmed:issue | 1 | lld:pubmed |
| pubmed-article:12762988 | pubmed:dateCreated | 2003-5-23 | lld:pubmed |
| pubmed-article:12762988 | pubmed:abstractText | Significant artifacts arise in T(1rho)-weighted imaging when nutation angles suffer small deviations from their expected values. These artifacts vary with spin-locking time and amplitude, severely limiting attempts to perform quantitative imaging or measurement of T(1rho) relaxation times. A theoretical model explaining the origin of these artifacts is presented in the context of a T(1rho)-prepared fast spin-echo imaging sequence. Experimentally obtained artifacts are compared to those predicted by theory and related to B(1) inhomogeneity. Finally, a "self-compensating" spin-locking preparatory pulse cluster is presented, in which the second half of the spin-locking pulse is phase-shifted by 180 degrees. Use of this pulse sequence maintains relatively uniform signal intensity despite large variations in flip angle, greatly reducing artifacts in T(1rho)-weighted imaging. | lld:pubmed |
| pubmed-article:12762988 | pubmed:grant | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12762988 | pubmed:grant | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12762988 | pubmed:language | eng | lld:pubmed |
| pubmed-article:12762988 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12762988 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:12762988 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:12762988 | pubmed:month | May | lld:pubmed |
| pubmed-article:12762988 | pubmed:issn | 1090-7807 | lld:pubmed |
| pubmed-article:12762988 | pubmed:author | pubmed-author:BorthakurArij... | lld:pubmed |
| pubmed-article:12762988 | pubmed:author | pubmed-author:ReddyRavinder... | lld:pubmed |
| pubmed-article:12762988 | pubmed:author | pubmed-author:LeighJohn SJS | lld:pubmed |
| pubmed-article:12762988 | pubmed:author | pubmed-author:CharagundlaSr... | lld:pubmed |
| pubmed-article:12762988 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:12762988 | pubmed:volume | 162 | lld:pubmed |
| pubmed-article:12762988 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:12762988 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:12762988 | pubmed:pagination | 113-21 | lld:pubmed |
| pubmed-article:12762988 | pubmed:dateRevised | 2007-11-14 | lld:pubmed |
| pubmed-article:12762988 | pubmed:meshHeading | pubmed-meshheading:12762988... | lld:pubmed |
| pubmed-article:12762988 | pubmed:meshHeading | pubmed-meshheading:12762988... | lld:pubmed |
| pubmed-article:12762988 | pubmed:meshHeading | pubmed-meshheading:12762988... | lld:pubmed |
| pubmed-article:12762988 | pubmed:year | 2003 | lld:pubmed |
| pubmed-article:12762988 | pubmed:articleTitle | Artifacts in T(1rho)-weighted imaging: correction with a self-compensating spin-locking pulse. | lld:pubmed |
| pubmed-article:12762988 | pubmed:affiliation | B1 Stellar-Chance Laboratories, MMRRCC, Department of Radiology, University of Pennsylvania, 422 Curie Boulevard, Philadelphia, PA 19104-6100, USA. Sridhar@mail.mmrrcc.upenn.edu | lld:pubmed |
| pubmed-article:12762988 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:12762988 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
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