Understanding MRI: Boltzmann Magnetism and Spin Echo

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This overview covers the fundamentals of Boltzmann magnetism and NMR, detailing key concepts such as magnetisation, polarisation, and the Bloch equations. It explores the effects of field inhomogeneity on signal dephasing and T2* decay, using practical examples to illustrate rapid signal loss. Additionally, it discusses the spin echo technique, highlighting its ability to recover T2 contrast and its implications for MRI applications, while also addressing its advantages, limitations, and...