Parallel and sparse MR imaging: methods and instruments-Part 2.
Parallel and sparse MR imaging: methods and instruments-Part 2.
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DOI：
10.3978/j.issn.2223-4292.2014.04.16
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发表时间：
2014-04
影响因子：
2.8
通讯作者：
J. Ji;Xiaoliang Zhang
中科院分区：
文献类型：
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作者：
J. Ji;Xiaoliang Zhang
就像阵列换能器和先进的信号处理技术显著改善了超声成像一样，发射/接收阵列的并行成像和稀疏成像技术也使磁共振成像发生了革命性的变化。这些新发展带来的高速MRI和高场MRI确实令人兴奋，并被视为将MRI从解剖成像推进到功能、动态和分子成像的关键。核磁共振是一种主要的非侵入性成像手段。然而，与超声、X射线计算机断层扫描(CT)和光学成像相比，它仍然是一种相对较慢的模式；在分子成像领域，它的灵敏度低于正电子发射断层扫描(PET)。高场和超高场MRI通过提供更高的信号强度、速度和新颖的对比度，提供了显著缩小这种差距的机会。随着高场MRI和高速MRI被证明对越来越多的应用至关重要，工程和临床创新和发展将继续涌现。
Just as array transducers and advanced signal processing have significantly improved ultrasound imaging, parallel imaging with transmit/receive array and sparse imaging techniques have revolutionized MRI. The high-speed MRI and high-field MRI enabled by these new developments are truly exciting, and are viewed as key to advancing MRI from anatomical imaging to functional, dynamic, and molecular imaging. MRI is a premier noninvasive imaging modality. However, it is still a relatively slow modality when compared to ultrasound, X-ray computer tomography (CT), and optical imaging; and is less sensitive than positron emission tomography (PET) in the realm of molecular imaging. High fields and ultra-high field MRI, by offering increased signal strength, speed, and novel contrast, offer an opportunity to significantly reduce such gaps. As high-field MRI and high-speed MRI are being proven to be critical for more and more applications, engineering and clinical innovations and developments will continue to emerge.