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Fast B1 field localisation in high-field MRI systems
- Authors
- Yoo, Hyoung suk
- Issue Date
- Jul-2013
- Publisher
- INSTITUTION ENGINEERING TECHNOLOGY-IET
- Citation
- ELECTRONICS LETTERS, v.49, no.14, pp.866 - 868
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTRONICS LETTERS
- Volume
- 49
- Number
- 14
- Start Page
- 866
- End Page
- 868
- ISSN
- 0013-5194
- Abstract
- In high-magnetic magnetic resonance imaging (MRI) systems (7 T and above), the radio frequency (RF) field shows greater inhomogeneity compared with clinical MRI systems (1.5 and 3.0 T). In multi-channel RF coils, driving each coil element with convex optimisation can reduce non-uniformity of the RF field in a region of interest. In this Letter, a periodic compressed method (PCM) and a PCM after averaging are proposed in order to reduce RF coil control time at high fields. Simulation results were obtained using a human head model in 7 and 9.4 T systems, and the results are discussed in detail.
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Related Researcher
- Yoo, Hyoungsuk
- COLLEGE OF ENGINEERING (서울 바이오메디컬공학전공)