| pubmed-article:19572388 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19572388 | lifeskim:mentions | umls-concept:C1557561 | lld:lifeskim |
| pubmed-article:19572388 | lifeskim:mentions | umls-concept:C1519249 | lld:lifeskim |
| pubmed-article:19572388 | lifeskim:mentions | umls-concept:C0220825 | lld:lifeskim |
| pubmed-article:19572388 | lifeskim:mentions | umls-concept:C0439831 | lld:lifeskim |
| pubmed-article:19572388 | pubmed:issue | 3 | lld:pubmed |
| pubmed-article:19572388 | pubmed:dateCreated | 2009-9-2 | lld:pubmed |
| pubmed-article:19572388 | pubmed:abstractText | The aims of this study were to validate stiffness estimates of a phantom undergoing cyclic deformation obtained using a multiphase magnetic resonance elastography (MRE) imaging sequence by comparison with those obtained using a single-phase MRE sequence and to quantify the stability of the multiphase-derived stiffness estimates as a function of deformation frequency and imaging parameters. A spherical rubber shell of 10 cm diameter and 1 cm thickness was connected to a computerized flow pump to produce cyclic pressure variations within the phantom. The phantom was imaged at cyclic pressures between 18-72 bpm using single-phase and multiphase MRE acquisitions. The shear stiffness of the phantom was resolved using a spherical shell wave inversion algorithm. Shear stiffness was averaged over the slice of interest and plotted against pressure within the phantom. A linear correlation was observed between stiffness and pressure. Good correlation (R(2) = 0.98) was observed between the stiffness estimates obtained using the standard single-phase and the multiphase pulse sequences. Stiffness estimates obtained using multiphase MRE were stable when the fraction of the deformation period required for acquisition of a single image was not greater than 42%. The results demonstrate the potential of multiphase MRE technique for imaging dynamic organs, such as the heart. | lld:pubmed |
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| pubmed-article:19572388 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19572388 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19572388 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:19572388 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:19572388 | pubmed:month | Sep | lld:pubmed |
| pubmed-article:19572388 | pubmed:issn | 1522-2594 | lld:pubmed |
| pubmed-article:19572388 | pubmed:author | pubmed-author:ManducaArmand... | lld:pubmed |
| pubmed-article:19572388 | pubmed:author | pubmed-author:AraozPhilip... | lld:pubmed |
| pubmed-article:19572388 | pubmed:author | pubmed-author:EhmanRichard... | lld:pubmed |
| pubmed-article:19572388 | pubmed:author | pubmed-author:McGeeKiaran... | lld:pubmed |
| pubmed-article:19572388 | pubmed:author | pubmed-author:GlaserKevin... | lld:pubmed |
| pubmed-article:19572388 | pubmed:author | pubmed-author:KolipakaAruna... | lld:pubmed |
| pubmed-article:19572388 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:19572388 | pubmed:volume | 62 | lld:pubmed |
| pubmed-article:19572388 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19572388 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:19572388 | pubmed:pagination | 691-8 | lld:pubmed |
| pubmed-article:19572388 | pubmed:dateRevised | 2011-7-28 | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:meshHeading | pubmed-meshheading:19572388... | lld:pubmed |
| pubmed-article:19572388 | pubmed:year | 2009 | lld:pubmed |
| pubmed-article:19572388 | pubmed:articleTitle | Evaluation of a rapid, multiphase MRE sequence in a heart-simulating phantom. | lld:pubmed |
| pubmed-article:19572388 | pubmed:affiliation | Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA. | lld:pubmed |
| pubmed-article:19572388 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:19572388 | pubmed:publicationType | Evaluation Studies | lld:pubmed |
| pubmed-article:19572388 | pubmed:publicationType | Research Support, N.I.H., Extramural | lld:pubmed |
| http://linkedlifedata.com/r... | pubmed:referesTo | pubmed-article:19572388 | lld:pubmed |
