{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,13]],"date-time":"2026-11-13T10:37:43Z","timestamp":1794566263077,"version":"4.9.1"},"reference-count":58,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2020,5,8]],"date-time":"2020-05-08T00:00:00Z","timestamp":1588896000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Magnetic Resonance in Med"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>The aim of this work was to provide parallel imaging capability for the human head in a gradient insert of 33\u2010cm inner diameter within the related constraints of space, encoding ambiguity, and eddy current immunity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Eddy current behavior of the 8\u2010channel transmit\u2013receive array coil was investigated via heating and field deviation measurements. RF performance was evaluated using S\u2010parameters, noise statistics, <jats:italic>B<\/jats:italic><jats:sub>1<\/jats:sub> maps, and g\u2010factor maps. In vivo images of a human head and knee were acquired with Cartesian readout and TE below 0.45\u00a0ms.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Under intense gradient use, the shield was heated up to 55\u00b0C and other coil structures to 40\u00b0C. After standard preemphasis calibration, eddy current\u2010related field distortions caused by the developed RF coil were smaller than for a commercial receive\u2010only coil. In the ambiguous regions of the gradient, <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/mrm28261-math-0001.png\" xlink:title=\"urn:x-wiley:07403194:media:mrm28261:mrm28261-math-0001\"\/> is 20\u00a0dB lower than in the center of the FOV. Coupling between elements is below \u221215\u00a0dB, and noise correlation is less than 0.31 when the coil is loaded with a head. Power efficiency was 0.52 \u00b1 0.02\u00a0\u03bcT\/\u221aW, and the SD of the flip angle was below 10% in central slices of the brain. 2D, up to fourfold acceleration causes less than 30% noise amplification. The RF coil can be used during full gradient performance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Based on the described features, the presented coil enables parallel imaging in the high\u2010performance gradient insert.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mrm.28261","type":"journal-article","created":{"date-parts":[[2020,5,9]],"date-time":"2020-05-09T07:00:12Z","timestamp":1589007612000},"page":"2278-2289","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["A transmit\u2013receive array for brain imaging with a high\u2010performance gradient insert"],"prefix":"10.1002","volume":"84","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5750-9391","authenticated-orcid":false,"given":"Manuela B.","family":"R\u00f6sler","sequence":"first","affiliation":[{"name":"ETH Zurich and University of Zurich, Institute for Biomedical Engineering Zurich CH Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph","family":"Leussler","sequence":"additional","affiliation":[{"name":"Philips GmbH Innovative Technologies Hamburg DE Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David O.","family":"Brunner","sequence":"additional","affiliation":[{"name":"ETH Zurich and University of Zurich, Institute for Biomedical Engineering Zurich CH Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Schmid","sequence":"additional","affiliation":[{"name":"ETH Zurich and University of Zurich, Institute for Biomedical Engineering Zurich CH Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0043-9921","authenticated-orcid":false,"given":"Franciszek","family":"Hennel","sequence":"additional","affiliation":[{"name":"ETH Zurich and University of Zurich, Institute for Biomedical Engineering Zurich CH Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7365-0421","authenticated-orcid":false,"given":"Roger","family":"Luechinger","sequence":"additional","affiliation":[{"name":"ETH Zurich and University of Zurich, Institute for Biomedical Engineering Zurich CH Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Markus","family":"Weiger","sequence":"additional","affiliation":[{"name":"ETH Zurich and University of Zurich, Institute for Biomedical Engineering Zurich CH Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Klaas P.","family":"Pruessmann","sequence":"additional","affiliation":[{"name":"ETH Zurich and University of Zurich, Institute for Biomedical Engineering Zurich CH Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,5,8]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1088\/0022-3727\/19\/8\/001"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1039\/9781782623878-00208"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2013.05.074"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.1910350614"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/1522-2594(200012)44:6<955::AID-MRM18>3.0.CO;2-1"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.25210"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.26044"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.26954"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.1910160203"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.10171"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1522-2594(199911)42:5<952::AID-MRM16>3.0.CO;2-S"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.1910380414"},{"key":"e_1_2_8_14_1","unstructured":"SeifertF WuebbelerG JungeS RinnebergH.B1 (+) steering by an adaptive 4\u2010channel transmit\/receive coil array. 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