Rapid compositional mapping of knee cartilage with compressed sensing MRI.
Rapid compositional mapping of knee cartilage with compressed sensing MRI.
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DOI：
10.1002/jmri.26274
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发表时间：
2018-11
期刊：
影响因子：
--
通讯作者：
Regatte RR
中科院分区：
文献类型：
--
作者：
Zibetti MVW;Baboli R;Chang G;Otazo R;Regatte RR
在MRI中引入压缩传感（CS）十多年后，研究人员仍在研究如何将其转化为不同的研究和临床应用。CS在MRI中的最大优势是减少了重建图像所需的k空间数据量，这可以用于减少扫描时间或提高空间分辨率和体积覆盖范围。有效的数据采集使用CS是非常重要的组成映射的肌肉骨骼系统，特别是膝关节软骨映射技术。使用CS MRI可以在短短几分钟内获得有关组织生化成分的高分辨率定量信息。然而，为了实现这一目标，仍然需要解决一些问题。在本文中，我们回顾了目前的艺术状态的CS方法的膝关节软骨的快速成分映射。具体而言，数据采集策略，图像重建算法，和数据拟合模型进行了讨论。对膝关节软骨T2和T1ρ成像的不同CS研究进行了综述，并给出了说明性结果。未来的发展方向，机遇和挑战的快速成分映射技术进行了讨论。压缩感知MRI是快速成分映射技术的一个飞跃，特别是对于膝关节软骨。对于有效的实际应用，仍有几点需要改进，但毫无疑问，它将把膝关节软骨的成分映射转换为临床医生和研究人员快速可靠的定量信息来源，而不会降低松弛图的质量，并为患者提供更舒适的体验。
More than one decade after the introduction of compressed sensing (CS) in MRI, researchers are still working on ways to translate it into different research and clinical applications. The greatest advantage of CS in MRI is the reduced amount of k-space data needed to reconstruct images, which can be exploited to reduce scan time or to improve spatial resolution and volumetric coverage. Efficient data acquisition using CS is extremely important for compositional mapping of the musculoskeletal system in general and knee cartilage mapping techniques in particular. High-resolution quantitative information about tissue biochemical composition could be obtained in just a few minutes using CS MRI. However, in order to make this goal a reality, some issues still need to be addressed. In this paper, we review the current state of the art of CS methods for rapid compositional mapping of knee cartilage. Specifically, data acquisition strategies, image reconstruction algorithms, and data fitting models are discussed. Different CS studies for T2 and T1ρ mapping of knee cartilage are reviewed, with illustrative results. Future directions, opportunities, and challenges of rapid compositional mapping techniques are also discussed. Compressed sensing MRI is a leap forward for rapid compositional mapping techniques, especially for knee cartilage. There are still several points to be refined for effective practical use, but there is no doubt that it will transform compositional mapping of knee cartilage into a rapid and reliable source of quantitative information for clinicians and researchers, without degrading the quality of relaxation maps, and providing a more comfortable experience for patients.
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DOI：
10.1097/01.rmr.0000136558.09801.dd
发表时间：
2004-08-01
期刊：
Topics in magnetic resonance imaging : TMRI
影响因子：
--
作者：
Blaimer, Martin;Breuer, Felix;Jakob, Peter M
通讯作者：
Jakob, Peter M
影响因子：
20.6
作者：
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通讯作者：
Ma, Yi
影响因子：
3.3
作者：
Doneva, Mariya;Boernert, Peter;Mertins, Alfred
通讯作者：
Mertins, Alfred
影响因子：
2.5
作者：
Candès, EJ;Romberg, J;Tao, T
通讯作者：
Tao, T
影响因子：
2.1
作者：
Beck, Amir;Teboulle, Marc
通讯作者：
Teboulle, Marc