{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T00:39:10Z","timestamp":1761007150797,"version":"build-2065373602"},"reference-count":62,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2022,3,31]],"date-time":"2022-03-31T00:00:00Z","timestamp":1648684800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["NMR in Biomedicine"],"published-print":{"date-parts":[[2022,8]]},"abstract":"<jats:p>To improve parallel transmit (pTx) and receive performance for cardiac MRI (cMRI) in pigs at 7\u2009T, a dedicated transmit\/receive (Tx\/Rx), 16\u2010element antisymmetric dipole antenna array, which combines L\u2010shaped and straight dipoles, was designed, implemented, and evaluated in both cadavers and animals in vivo. Electromagnetic\u2010field simulations were performed with the new 16\u2010element dipole antenna array loaded with a pig thorax\u2010shaped phantom and compared with an eight\u2010element array of straight dipoles. The new dipole array was interfaced to a 7\u2009T scanner in pTx mode (8Tx\/16Rx). Imaging performance of the novel array was validated through MRI measurements in a pig phantom, an 85\u2009kg pig cadaver, and two pigs in vivo (74 and 81\u2009kg). Due to the improved decoupling between interleaved L\u2010shaped and straight dipole elements, the 16\u2010element dipole array fits within the same outer dimensions as an eight\u2010element array of straight dipoles. This provides improvement of both transmit and receive characteristics and additional degrees of freedom for \n shimming. The antisymmetric dipole array demonstrated efficient suppression of destructive interferences in the \n field, with up to 25% improvement in the \n homogeneity achieved using static pTx\u2010RFPA \n shimming in comparison with the hardware\u2010adjusted state, which was optimized for single transmit. High\u2010resolution (0.5\u2009\u00d7\u20090.5\u2009\u00d7\u20094\u2009mm<jats:sup>3<\/jats:sup>) anatomical images of the heart after cardiac arrest proved good transmit and receive characteristics of the novel array design. Parallel imaging with an acceleration factor up to <jats:italic>R<\/jats:italic>\u00a0=\u20096 was possible while maintaining a mean <jats:italic>g<\/jats:italic> factor of 1.55 within the pig heart. CINE images acquired in vivo in two pigs demonstrated SNR and parallel imaging capabilities similar to those of a reference 8Tx\/16Rx dedicated loop array for cMRI in pigs.<\/jats:p>","DOI":"10.1002\/nbm.4726","type":"journal-article","created":{"date-parts":[[2022,3,11]],"date-time":"2022-03-11T23:34:48Z","timestamp":1647041688000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A novel antisymmetric 16\u2010element transceiver dipole antenna array for parallel transmit cardiac MRI in pigs at 7\u2009T"],"prefix":"10.1002","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0408-2942","authenticated-orcid":false,"given":"Ibrahim A.","family":"Elabyad","sequence":"first","affiliation":[{"name":"Comprehensive Heart Failure Center (CHFC) University Hospital Wuerzburg  Wuerzburg 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