A target field design of open multi-purpose RF coil for musculoskeletal   MR imaging at 3 T

doi:10.1016/j.mri.2016.04.018

CORC > 北京大学 > 工学院

	A target field design of open multi-purpose RF coil for musculoskeletal MR imaging at 3 T
	Gao, Fei ; Zhang, Rui ; Zhou, Diange ; Wang, Xiaoying ; Huang, Kefu ; Zhang, Jue
刊名	MAGNETIC RESONANCE IMAGING
	2016
关键词	Target field approach Open Radio-frequency (RF) coil Musculoskeletal MR imaging VARYING FLEXION ANGLES PHASED-ARRAY COIL REAL-TIME MRI INVERSE METHODOLOGY JOINT KINEMATICS SKELETAL-MUSCLE KNEE KINEMATICS HIGH-RESOLUTION IN-VIVO SHIM
DOI	10.1016/j.mri.2016.04.018
英文摘要	Musculoskeletal MR imaging under multi-angle situations plays an increasingly important role in assessing joint and muscle tissues system. However, there are still limitations due to the closed structures of most conventional RF coils. In this study, a time-harmonic target-field method was employed to design open multi-purpose coil (OMC) for multi-angle musculoskeletal MR imaging. The phantom imaging results suggested that the proposed OMC could achieve homogeneously distributed magnetic field and high signal-to-noise ratio (SNR) of 239.04 +/- 0.83 in the region of interest (ROI). The maximum temperature in the heating hazard test was 16 degrees C lower than the standard regulation, which indicated the security of the designed OMC. Furthermore, to demonstrate the effectiveness of the proposed OMC for musculoskeletal MR imaging, especially for multi-angle imaging, a healthy volunteer was examined for MR imaging of elbow, ankle and knee using OMC. The in vivo imaging results showed that the proposed OMC is effective for MR imaging of musculoskeletal tissues at different body parts, with satisfied B1 field homogeneity and SNR. Moreover, the open structure of the OMC could provide a large joint movement region. The proposed open multi-purpose coil is feasible for musculoskeletal MR imaging, and potentially, it is more suitable for the evaluation of musculoskeletal tissues under multi-angle conditions. (C) 2016 Published by Elsevier Inc.; National Natural Science Foundation of China [81571666, 11372013, 11572003]; SCI(E); PubMed; ARTICLE; hkf@pku.edu.cn; zhangjue@pku.edu.cn; 8; 1064-1070; 34
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/433971]
专题	工学院
推荐引用方式 GB/T 7714	Gao, Fei,Zhang, Rui,Zhou, Diange,et al. A target field design of open multi-purpose RF coil for musculoskeletal MR imaging at 3 T[J]. MAGNETIC RESONANCE IMAGING,2016.
APA	Gao, Fei,Zhang, Rui,Zhou, Diange,Wang, Xiaoying,Huang, Kefu,&Zhang, Jue.(2016).A target field design of open multi-purpose RF coil for musculoskeletal MR imaging at 3 T.MAGNETIC RESONANCE IMAGING.
MLA	Gao, Fei,et al."A target field design of open multi-purpose RF coil for musculoskeletal MR imaging at 3 T".MAGNETIC RESONANCE IMAGING (2016).