{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T20:07:09Z","timestamp":1793390829513,"version":"4.5.0"},"reference-count":53,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2018,9,5]],"date-time":"2018-09-05T00:00:00Z","timestamp":1536105600000},"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":[[2019,2]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>Dipole antennas that provide high transmit field penetration with large coverage, and their use in a parallel transmit setup, may be advantageous in minimizing B<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/mrm27476-math-0003.png\" xlink:title=\"urn:x-wiley:07403194:media:mrm27476:mrm27476-math-0003\"\/>\u2010field inhomogeneities at ultra\u2010high field, i.e 7T. We have developed and evaluated an 8\u2010channel RF dipole coil array for imaging the entire cerebral and cerebellar regions in man.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A coil array was modeled with seven dipoles: six placed covering the occipital and temporal lobes; one covering the parietal lobe; and two loops covering the frontal lobe. Center\u2010shortened and fractionated dipoles were simulated for the array configuration and assessed with respect to B<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/mrm27476-math-0004.png\" xlink:title=\"urn:x-wiley:07403194:media:mrm27476:mrm27476-math-0004\"\/>\u2010field at maximum specific absorption rate averaged over 10 g tissue regions in human brain. The whole\u2010brain center\u2010shortened dipoles with frontal loops coil array was constructed and its transmit properties were assessed with respect to MR images, B<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/mrm27476-math-0005.png\" xlink:title=\"urn:x-wiley:07403194:media:mrm27476:mrm27476-math-0005\"\/>\u2010field, and homogeneity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In simulations, the dipole arrays showed comparable performances to cover the whole\u2010brain. However, for ease of construction, the center\u2010shortened dipole was favored. High spatial resolution anatomical images of the human brain with the coil array demonstrated a full coverage of the cerebral cortex and cerebellum.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The 8\u2010channel center\u2010shortened dipoles and frontal loops coil array promises remarkable efficiency in highly challenging regions as the cerebellum, and phase\u2010only RF shimming of whole\u2010brain could greatly benefit ultra\u2010high field magnetic resonance imaging of the human brain at 7T.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mrm.27476","type":"journal-article","created":{"date-parts":[[2018,9,5]],"date-time":"2018-09-05T13:12:40Z","timestamp":1536153160000},"page":"1447-1458","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":50,"title":["A human cerebral and cerebellar 8\u2010channel transceive RF dipole coil array at 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