Hauptseite > Publikationsdatenbank > Design and use of a folded four-ring double-tuned birdcage coil for rat brain sodium imaging at 9.4 T > print |
001 | 841866 | ||
005 | 20210129232112.0 | ||
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100 | 1 | _ | |a Ha, YongHyun |0 P:(DE-Juel1)159538 |b 0 |
245 | _ | _ | |a Design and use of a folded four-ring double-tuned birdcage coil for rat brain sodium imaging at 9.4 T |
260 | _ | _ | |a Amsterdam [u.a.] |c 2018 |b Elsevier |
336 | 7 | _ | |a article |2 DRIVER |
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336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1515402503_28984 |2 PUB:(DE-HGF) |
336 | 7 | _ | |a ARTICLE |2 BibTeX |
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336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
520 | _ | _ | |a A folded four-ring quadrature birdcage coil was designed and constructed with a double-tune configuration of an outer high-pass coil for 1H (400 MHz) and inner low-pass coil for 23Na (105.72 MHz at 9.4 T). The coil was evaluated on the bench and in the scanner, comparing its performance with that of single-tuned coils and a large four-ring coil. All coils were tuned and matched and the isolation between two quadrature ports was found to be better than −13.7 dB for 1H and −27 dB for 23Na. Signal-to-noise ratios (SNRs) were calculated and 23Na flip angle maps were acquired. 23Na SNR of the folded four-ring reached ∼93% of that obtained with the single-tuned coil. A set of in vivo1H and 23Na axial images to cover the whole rat brain were obtained. The performance of the folded four-ring coil and its benefit for 23Na imaging experiments have been demonstrated. This proposed four-ring coil could avoid length restrictions, e.g. the shoulders, by folding the outer rings vertically. This facilitates the construction of double-tuned four-ring birdcage coils just to fit the head, leading to higher filling factors and better SNR. |
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700 | 1 | _ | |a Choi, Chang-Hoon |0 P:(DE-Juel1)156200 |b 1 |e Corresponding author |
700 | 1 | _ | |a Worthoff, Wieland |0 P:(DE-Juel1)156200 |b 2 |
700 | 1 | _ | |a Shymanskaya, Aliaksandra |0 P:(DE-Juel1)167471 |b 3 |
700 | 1 | _ | |a Schöneck, Michael |0 P:(DE-Juel1)131792 |b 4 |
700 | 1 | _ | |a Willuweit, Antje |0 P:(DE-Juel1)144347 |b 5 |
700 | 1 | _ | |a Felder, Jörg |0 P:(DE-Juel1)131761 |b 6 |
700 | 1 | _ | |a Shah, N. J. |0 P:(DE-Juel1)131794 |b 7 |
773 | _ | _ | |a 10.1016/j.jmr.2017.12.003 |g Vol. 286, p. 110 - 114 |0 PERI:(DE-600)1469665-4 |p 110 - 114 |t Journal of magnetic resonance |v 286 |y 2018 |x 1090-7807 |
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