AI Article Synopsis
- T and T relaxation times are essential for effective magnetic resonance imaging (MRI), as they help in determining tissue characteristics.
- There is significant variability in reported T and T values for similar tissues, which creates challenges for their use in clinical imaging.
- The article reviews existing literature on relaxation times across various tissues at 3T and discusses the methods used to obtain these measurements, as well as the factors contributing to the discrepancies in reported values.
Article Abstract
The T and T relaxation times are the basic parameters behind magnetic resonance imaging. The accurate knowledge of the T and T values of tissues allows to perform quantitative imaging and to develop and optimize magnetic resonance sequences. A vast extent of methods and sequences has been developed to calculate the T and T relaxation times of different tissues in diverse centers. Surprisingly, a wide range of values has been reported for similar tissues (e.g. T of white matter from 699 to 1735ms and T of fat from 41 to 371ms), and the true values that represent each specific tissue are still unclear, which have deterred their common use in clinical diagnostic imaging. This article presents a comprehensive review of the reported relaxation times in the literature in vivo at 3T for a large span of tissues. It gives a detailed analysis of the different methods and sequences used to calculate the relaxation times, and it explains the reasons of the spread of reported relaxation times values in the literature.
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| http://dx.doi.org/10.1016/j.mri.2016.08.021 | DOI Listing |
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