Short T2 contrast with three-dimensional ultrashort echo time imaging.
Short T2 contrast with three-dimensional ultrashort echo time imaging.
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DOI：
10.1016/j.mri.2010.11.003
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发表时间：
2011-05
影响因子：
2.5
通讯作者：
Bydder, Graeme M.
中科院分区：
文献类型：
--
作者：
Du, Jiang;Bydder, Mark;Takahashi, Atsushi M.;Carl, Michael;Chung, Christine B.;Bydder, Graeme M.
人们越来越感兴趣的成像短T2物种，显示很少或没有信号与传统的磁共振（MR）脉冲序列。在本文中，我们描述了使用三维超短回波时间（3D UTE）序列与TE低至8 μs的这些物种的成像。使用双回波3D UTE（带回波减影）、双回波3D UTE（带重新缩放减影）、长T2饱和3D UTE、长T2饱和双回波3D UTE（带回波减影）、单绝热反转恢复3D UTE、单绝热反转恢复双回波3D UTE（带回波减影）和双绝热反转恢复3D UTE采集生成图像对比度。使用这些方法的可行性证明在体外和体内成像的钙化软骨，腱膜，腱鞘，肌腱，韧带和皮质骨与3-T临床MR扫描仪。信噪比和对比度噪声比被用来比较的技术。
There is increasing interest in imaging short T2 species which show little or no signal with conventional magnetic resonance (MR) pulse sequences. In this paper, we describe the use of three-dimensional ultrashort echo time (3D UTE) sequences with TEs down to 8 μs for imaging of these species. Image contrast was generated with acquisitions using dual echo 3D UTE with echo subtraction, dual echo 3D UTE with rescaled subtraction, long T2 saturation 3D UTE, long T2 saturation dual echo 3D UTE with echo subtraction, single adiabatic inversion recovery 3D UTE, single adiabatic inversion recovery dual echo 3D UTE with echo subtraction and dual adiabatic inversion recovery 3D UTE. The feasibility of using these approaches was demonstrated in in vitro and in vivo imaging of calcified cartilage, aponeuroses, menisci, tendons, ligaments and cortical bone with a 3-T clinical MR scanner. Signal-to-noise ratios and contrast-to-noise ratios were used to compare the techniques.
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影响因子：
3.3
作者：
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通讯作者：
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作者：
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通讯作者：
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作者：
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