University of Cambridge, Department of Chemical Engineering and Biotechnology, Pembroke Street, Cambridge CB2 3RA, UK.
J Magn Reson. 2013 Apr;229:2-11. doi: 10.1016/j.jmr.2012.11.022. Epub 2012 Nov 29.
The past five years have seen exciting new developments in Flow MRI. Two-dimensional images are now routinely acquired in 100-200 ms and, in some cases, acquisition times of 5-10 ms are possible. This has been achieved not only by advances in the implementation of existing pulse sequences but also in data acquisition strategies, such as Compressed Sensing and Bayesian approaches, and technical advices in parallel imaging and signal enhancement methods. In particular, the short imaging timescales that are now achieved offer significant opportunities in the study of transient flow phenomena.
过去五年中，流动磁共振成像领域出现了令人兴奋的新进展。二维图像现在通常可以在 100-200 毫秒内获取，在某些情况下，甚至可以达到 5-10 毫秒的采集时间。这不仅得益于现有脉冲序列实施方面的进步，还得益于数据采集策略的进步，如压缩感知和贝叶斯方法，以及并行成像和信号增强方法方面的技术进步。特别是，现在实现的短成像时间尺度为研究瞬态流动现象提供了重要机会。
