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dc.contributor.authorSeo, Youngseoben_US
dc.contributor.authorWillig-Onwuachi, Jacoben_US
dc.contributor.authorWalton, Jeffrey H.en_US
dc.coverage.spatialUnited Statesen_US
dc.date2012-02-13
dc.date.accessioned2021-07-20T14:04:18Z
dc.date.available2021-07-20T14:04:18Z
dc.date.issued2012-07-05
dc.identifierhttps://www.ncbi.nlm.nih.gov/pubmed/22766949
dc.identifier.citationYoungseob Seo, Jacob Willig-Onwuachi, Jeffrey H Walton. 2012. "Magnetic resonance thermal imaging combined with SMASH navigators in the presence of motion.." J Appl Clin Med Phys, Volume 13, Issue 4, pp. 3792 - ?. https://doi.org/10.1120/jacmp.v13i4.3792
dc.identifier.issn1526-9914
dc.identifier.urihttps://hdl.handle.net/2144/42765
dc.description.abstractThis study develops and tests an MR thermometry method combined with SMASH navigators in phantom experiments mimicking human liver motion with the purpose of detecting and correcting motion artifacts in thermal MR images. Experimental data were acquired on a 3T MRI scanner. Motion artifacts of mobile phantoms mimicking human liver motion were detected and corrected using the SMASH navigators and then MR temperature maps were obtained using a proton resonant frequency (PRF) shift method with complex image subtraction. Temperature acquired by MR thermal imaging was compared to that measured via thermocouples. MR thermal imaging combined with the SMASH navigator technique resulted in accurate temperature maps of the mobile phantoms compared to temperatures measured using the thermocouples. The differences between the obtained and measured temperatures varied from 8.2°C to 14.2°C and 2.2°C to 4.9°C without and with motion correction, respectively. Motion correction improved the temperature acquired by MR thermal imaging by > 55%. The combination of the MR thermal imaging and SMASH navigator technique will enable monitoring and controlling heat distribution and temperature change in tissues during thermal therapies and will be a very important tool for cancer treatment in mobile organs.en_US
dc.format.extentp. 3792en_US
dc.languageeng
dc.language.isoen_US
dc.relation.ispartofJ Appl Clin Med Phys
dc.rights© 2012 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectHumansen_US
dc.subjectLiveren_US
dc.subjectMagnetic resonance imagingen_US
dc.subjectMotionen_US
dc.subjectPhantoms, imagingen_US
dc.subjectTemperatureen_US
dc.subjectLiveren_US
dc.subjectHumansen_US
dc.subjectNuclear medicine & medical imagingen_US
dc.subjectOther physical sciencesen_US
dc.subjectClinical sciencesen_US
dc.subjectMedical physiologyen_US
dc.titleMagnetic resonance thermal imaging combined with SMASH navigators in the presence of motionen_US
dc.typeArticleen_US
dc.description.versionPublished versionen_US
dc.identifier.doi10.1120/jacmp.v13i4.3792
pubs.elements-sourcepubmeden_US
pubs.notesEmbargo: Not knownen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Arts & Sciencesen_US
pubs.organisational-groupBoston University, College of Arts & Sciences, Department of Physicsen_US
pubs.publication-statusPublished onlineen_US
dc.identifier.mycv393466


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© 2012 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Except where otherwise noted, this item's license is described as © 2012 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.