Opportunities and Challenges of 7 Tesla Magnetic Resonance Imaging: A Review
Opportunities and Challenges of 7 Tesla Magnetic Resonance Imaging: A Review
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DOI：
10.1615/critrevbiomedeng.2016016365
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发表时间：
2016-01-01
影响因子：
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通讯作者：
Santos-Diaz, Alejandro
中科院分区：
文献类型：
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作者：
Karamat, Muhammad Irfan;Darvish-Molla, Sahar;Santos-Diaz, Alejandro
实现临床超高磁共振成像(MRI)系统的愿望源于这样一个事实，即更高的场强会导致更高的信噪比(SNR)、对比度噪声比(CNR)和空间分辨率。近年来，7T磁共振成像系统已成为超高场磁共振成像(UhFMRI)系统的准标准。本文详细介绍了临床7T磁共振成像系统在颅脑和颅外成像方面的机遇和挑战。与之前所有向更高场强的转变一样，从高强度到UhFMRI的转换并不容易。工程界和科学界必须克服诸如磁场不均匀、患者安全和舒适性问题以及成本和相关问题等挑战，以实现临床上可行的UhFMRI系统。此外，还需要大量的临床研究来证明7T MRI在诊断质量方面的改进，以便将这样的研究工具带到临床上。
The desire to achieve clinical ultra-high magnetic resonance imaging (MRI) systems stems from the fact that higher field strength leads to higher signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and spatial resolution. During last few years 7T MRI systems have become a quasi standard for ultra-high field MRI (UhFMRI) systems. This review presents a detailed account of opportunities and challenges associated with a clinical 7T MRI system for cranial and extracranial imaging. As with all of the previous transitions to higher field strengths, the switch from high to UhFMRI is not easy. The engineering and scientific community have to overcome challenges like magnetic field inhomogeneity, patient safety and comfort issues, and cost and related problems in order to achieve a clinically viable UhFMRI system. In addition, a large number of clinical studies are still required to show the improvements in quality of diagnostics that would come with 7T MRI, in order to bring such a research tool to the clinic.