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Short-T2 MRI: Principles and recent advances
Progress in Nuclear Magnetic Resonance Spectroscopy ( IF 6.1 ) Pub Date : 2019-10-01 , DOI: 10.1016/j.pnmrs.2019.07.001
Markus Weiger , Klaas P. Pruessmann

Among current modalities of biomedical and diagnostic imaging, MRI stands out by virtue of its versatile contrast obtained without ionizing radiation. However, in various cases, e.g., water protons in tissues such as bone, tendon, and lung, MRI performance is limited by the rapid decay of resonance signals associated with short transverse relaxation times T2 or T2*. Efforts to address this shortcoming have led to a variety of specialized short-T2 techniques. Recent progress in this field expands the choice of methods and prompts fresh considerations with regard to instrumentation, data acquisition, and signal processing. In this review, the current status of short-T2 MRI is surveyed. In an attempt to structure the growing range of techniques, the presentation highlights overarching concepts and basic methodological options. The most frequently used approaches are described in detail, including acquisition strategies, image reconstruction, hardware requirements, means of introducing contrast, sources of artifacts, limitations, and applications.

中文翻译:

短T2 MRI:原理和最新进展

在目前的生物医学和诊断成像方式中,MRI 凭借其在没有电离辐射的情况下获得的多功能对比度而脱颖而出。然而,在各种情况下,例如,骨、肌腱和肺等组织中的水质子,MRI 性能受到与短横向弛豫时间 T2 或 T2* 相关联的共振信号的快速衰减的限制。解决这一缺点的努力导致了各种专门的短 T2 技术。该领域的最新进展扩大了方法的选择范围,并在仪器、数据采集和信号处理方面提出了新的考虑。在这篇综述中,对短 T2 MRI 的现状进行了调查。为了构建不断增长的技术范围,本演讲重点介绍了总体概念和基本方法论选项。
更新日期:2019-10-01
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