Single Breath Hold Multiple Slice DENSE MRI
2010 (English)In: Magnetic Resonance in Medicine, ISSN 0740-3194, E-ISSN 1522-2594, Vol. 63, no 5, 1411-1414 p.Article in journal (Refereed) Published
A method to acquire multiple displacement encoded slices within asingle breath hold is presented. Efficiency is improved overconventional Displacement ENcoding with Stimulated Echoes (DENSE) without compromising image quality by read-out of multiple slices inthe same cardiac cycle, thus utilizing the position encoded stimulatedecho available in the whole heart. The method was evaluated bycomparing strain values obtained using the proposed method to strainvalues obtained by conventional separate breath hold single-sliceDENSE acquisitions. Good agreement (Lagrangian E2 strainbias=0.000, 95% limits of agreement ±0.04,root-mean-square-difference 0.02 (9.4% of the mean end-systolic E2)) was found between the methods, indicating that the proposedmethod can replace a multiple breath hold acquisition. Eliminating theneed for multiple breath holds reduces the risk of changes in breathhold positions or heart rate, results in higher patient comfort andfacilitates inclusion of DENSE in a clinical routine protocol.
Place, publisher, year, edition, pages
John Wiley and Sons, Ltd , 2010. Vol. 63, no 5, 1411-1414 p.
DENSE, strain, multi-slice, breath hold, cardiac function
Medical Laboratory and Measurements Technologies
IdentifiersURN: urn:nbn:se:liu:diva-51974DOI: 10.1002/mrm.22305ISI: 000277098100030OAI: oai:DiVA.org:liu-51974DiVA: diva2:278375