Abstract
In the first chapter, entitled Fundamentals of Cardiac T1 Mapping, we present an overview of the scientific principles, technical choices and challenges associated with cardiac T1 mapping. This chapter reminds the reader that T1 mapping relies on a physical model of the MR signal, and shows the ways in which this model breaks down when the underlying assumptions are not met.
We start from first principles and introduce the basics of body T1 mapping before moving onto the most widely used cardiac sequences: MOLLI and ShMOLLI (which are based on a Look-Locker sequence) and SASHA (based on a saturation recovery sequence). We take a particularly close look at the confounding factors that might impact T1 mapping results in practice.
Next, we give key insights into the T1 mapping post-processing techniques, which are often used to communicate T1 mapping results to radiologists and cardiologists. Finally, we emphasize the need for proper validation, provide suggestions for standardizing the field, and end the chapter with recommendations for the clinical application of cardiac T1 mapping.
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Acknowledgements
The authors would like to thank Pascale Beliveau and Tarik Hafyane for their help with preparing the figures, and Reeve Ingle for insightful discussions.
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Barral, J.K., Friedrich, M.G., Stikov, N. (2018). Fundamentals of Cardiac T1 Mapping. In: Yang, P. (eds) T1-Mapping in Myocardial Disease. Springer, Cham. https://doi.org/10.1007/978-3-319-91110-6_1
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DOI: https://doi.org/10.1007/978-3-319-91110-6_1
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