التفاصيل البيبلوغرافية
| العنوان: |
Field Distribution and Coupling Investigation of an Eight-Channel RF Coil Consisting of Different Dipole Coil Elements for 7 T MRI. |
| المؤلفون: |
Chen, Zhichao1, Solbach, Klaus2, Erni, Daniel3, Rennings, Andreas3 |
| المصدر: |
IEEE Transactions on Biomedical Engineering. Jun2017, Vol. 64 Issue 6, p1297-1304. 8p. |
| مصطلحات موضوعية: |
*FINITE element method, RADIO frequency, COILS (Magnetism), MAGNETIC dipoles, MAGNETIC coupling, MAGNETIC noise |
| مستخلص: |
In this contribution, we investigate the B_\text1 distribution and coupling characteristics of a multichannel radio frequency (RF) coil consisting of different dipole coil elements for 7 T MRI, and explore the feasibility to achieve a compromise between field distribution and decoupling by combining different coil elements. Two types of dipole elements are considered here: the meander dipole element with a chip-capacitor-based connection to the RF shield which achieves a sufficient decoupling between the neighboring elements; and the open-ended meander dipole element which exhibits a broader magnetic field distribution. By nesting the open-ended dipole elements in between the ones with end-capacitors, the B_\text1 distribution, in terms of field penetration depth and homogeneity, is improved in comparison to the dipole coil consisting only of the elements with end-capacitors, and at the same time, the adjacent elements are less coupled to each other in comparison to the dipole coil consisting only of the open-ended elements. The proposed approach is validated by both full-wave simulation and experimental results. [ABSTRACT FROM AUTHOR] |
|
Copyright of IEEE Transactions on Biomedical Engineering is the property of IEEE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Business Source Index |
