{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T11:56:14Z","timestamp":1790682974381,"version":"4.1.0"},"reference-count":34,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:00:00Z","timestamp":1790640000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["P41 EB027061"],"award-info":[{"award-number":["P41 EB027061"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01 EB033365"],"award-info":[{"award-number":["R01 EB033365"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01 NS115180"],"award-info":[{"award-number":["R01 NS115180"]}],"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"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To generate accurate EM simulation models of RF coil arrays, improve coil safety validation procedures, and improve RF power management without sacrificing patient safety.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A fast, customized RF co\u2010simulation formulation was developed for pTx RF coils, enabling the use of experimentally measured  maps to optimize the values of lumped elements, phase shifters, and attenuators in the EM simulation model, and demonstrate in a phantom. The proposed method was tested on an 8\u2010channel pTx knee coil at 7T and a 16\u2010channel pTx head coil at 10.5T. An RF co\u2010simulation optimization method that relies solely on matching the simulated and experimental \u2010matrices was also implemented as a baseline. 50,000 random RF shims were used to evaluate the  error for both co\u2010simulation optimization methods.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The proposed \u2010driven co\u2010simulation optimization method generated accurate  maps when compared to experimentally measured  maps. The proposed method reduced the average NRMSE of the EM modeling against the measurements from 48.0% to 30.8% for the 7T 8\u2010channel coil, and from 91.1% to 50.9% for the 10.5T 16\u2010channel coil when compared to conventional methods using 50,000 random RF shims.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The developed \u2010driven RF co\u2010simulation optimization method in this work can be used to generate a more accurate EM simulation model of custom\u2010built arrays and potentially reduce the need for large safety margins, with improved RF power management.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/mrm.70603","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T11:02:42Z","timestamp":1790679762000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Fast B1+\u2010Driven RF Co\u2010Simulation Optimization Method for RF Coil Arrays"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5273-7456","authenticated-orcid":false,"given":"Mazin M.","family":"Mustafa","sequence":"first","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota at Twin Cities  Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ethan","family":"Polcyn","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota at Twin Cities  Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1743-8888","authenticated-orcid":false,"given":"Matt","family":"Waks","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota at Twin Cities  Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Bratch","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota at Twin Cities  Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3187-6529","authenticated-orcid":false,"given":"Gregory J.","family":"Metzger","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota at Twin Cities  Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0764-4613","authenticated-orcid":false,"given":"Xiufeng","family":"Li","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota at Twin Cities  Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-7880-9872","authenticated-orcid":false,"given":"Yigitcan","family":"Eryaman","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota at Twin Cities  Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,29]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2017.07.007"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.30315"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40134-014-0061-0"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/JERM.2018.2879396"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.28093"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.25723"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/TBME.2016.2521166"},{"key":"e_1_2_9_9_1","volume-title":"Co\u2010Simulations of Microwave Circuits and High\u2010Frequency Electromagnetic Fields","author":"Song T. 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