Real-time black-blood MRI using spatial presaturation
Real-time black-blood MRI using spatial presaturation
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DOI：
10.1002/jmri.1112
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发表时间：
2001-05-01
影响因子：
4.4
通讯作者：
Nishimura, DG
中科院分区：
文献类型：
--
作者：
Nayak, KS;Rivas, PA;Nishimura, DG
描述了实时交互式黑血成像系统。通过在每次成像激发之前对成像切片外部的板进行激发和相移来实现快速血液抑制。靠近成像切片放置的轮廓清晰的射频饱和脉冲可提供良好的血液抑制，即使在包含缓慢的平面流动的视图中也是如此。体内结果表明，该技术在实时心脏壁运动研究中改善了心内膜边界清晰的收缩期。模型和动物结果表明，该技术几乎消除了实时血管内研究中的流动伪影。 (C) 2001 Wiley-Liss, Inc.
A real-time interactive black-blood imaging system is described. Rapid blood suppression is achieved by exciting and dephasing slabs outside the imaging slice before each imaging excitation. Sharp-profiled radio frequency saturation pulses placed close to the Imaging slice provide good blood suppression, even In views containing slow through-plane flow. In vivo results Indicate that this technique improves endocardial border definition daring systole in real-time cardiac wall-motion studies. Phantom and animal results indicate that this technique nearly eliminates flow artifacts In real-time intravascular studies. (C) 2001 Wiley-Liss, Inc.