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Basic MRI Physics

Anthony H. Aletras
Published 2008 ·

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Magnetic resonance imaging (MRI) basic physics can be described at many different levels, ranging from purely descriptive all the way to quantum mechanics. Here, MRI physics is dealt with mostly in a descriptive manner, and simple mathematics are introduced only if necessary. The simple vector-based model for representing the magnetization is presented because it can deal with most aspects of MRI without the additional complexity of quantum mechanics. In this chapter, nuclear magnetic resonance (NMR) signal generation and its properties are discussed first. Subsequently, image formation in terms of localizing the NMR signal in three dimensions is presented.



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