{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T22:16:59Z","timestamp":1773008219141,"version":"3.50.1"},"reference-count":37,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,2,16]],"date-time":"2017-02-16T00:00:00Z","timestamp":1487203200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01NS077004"],"award-info":[{"award-number":["R01NS077004"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Magnetic Resonance in Med"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>Magnetic resonance electrical impedance tomography (MREIT) sequences typically use conventional spin or gradient echo\u2013based acquisition methods for reconstruction of conductivity and current density maps. Use of MREIT in functional and electroporation studies requires higher temporal resolution and faster sequences. Here, single and multishot echo planar imaging (EPI) based MREIT sequences were evaluated to see whether high\u2010quality MREIT phase data could be obtained for rapid reconstruction of current density, conductivity, and electric fields.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A gel phantom with an insulating inclusion was used as a test object. Ghost artifact, geometric distortion, and MREIT correction algorithms were applied to the data. The EPI\u2010MREIT\u2010derived phase\u2010projected current density and conductivity images were compared with simulations and spin\u2010echo images as a function of EPI shot number.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Good agreement among measures in simulated, spin echo, and EPI data was achieved. Current density errors were stable and below 9% as the shot number decreased from 64 to 2, but increased for single\u2010shot images. Conductivity reconstruction relative contrast ratios were stable as the shot number decreased. The derived electric fields also agreed with the simulated data.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The EPI methods can be combined successfully with MREIT reconstruction algorithms to achieve fast imaging of current density, conductivity, and electric field. Magn Reson Med 79:71\u201382, 2018. \u00a9 2017 International Society for Magnetic Resonance in Medicine.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mrm.26638","type":"journal-article","created":{"date-parts":[[2017,2,16]],"date-time":"2017-02-16T06:52:48Z","timestamp":1487227968000},"page":"71-82","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Multishot echo\u2010planar MREIT for fast imaging of conductivity, current density, and electric field distributions"],"prefix":"10.1002","volume":"79","author":[{"given":"Munish","family":"Chauhan","sequence":"first","affiliation":[{"name":"School of Biological and Health Systems Engineering Arizona State University Tempe, Arizona USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rohini","family":"Vidya Shankar","sequence":"additional","affiliation":[{"name":"School of Biological and Health Systems Engineering Arizona State University Tempe, Arizona USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Neeta","family":"Ashok Kumar","sequence":"additional","affiliation":[{"name":"School of Biological and Health Systems Engineering Arizona State University Tempe, Arizona USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vikram D.","family":"Kodibagkar","sequence":"additional","affiliation":[{"name":"School of Biological and Health Systems Engineering Arizona State University Tempe, Arizona USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rosalind","family":"Sadleir","sequence":"additional","affiliation":[{"name":"School of Biological and Health Systems Engineering Arizona State University Tempe, Arizona USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,2,16]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1088\/0967-3334\/29\/10\/R01"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s13534-012-0052-0"},{"key":"e_1_2_6_4_1","unstructured":"KasinadhuniAK ChauhanM IndahlastariA AndersonC CarneyP MareciTH SadleirRJ.Mapping magnetic fields due to electrical stimulation in the human brain: first measurements. 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