磁共振成像
实时核磁共振成像
信号(编程语言)
核磁共振
集合(抽象数据类型)
物理
过程(计算)
计算机科学
医学物理学
放射科
医学
操作系统
程序设计语言
作者
João Tourais,Chiara Coletti,Sebastian Weingärtner
出处
期刊:Advances in magnetic resonance technology and applications
日期:2022-01-01
卷期号:: 3-36
标识
DOI:10.1016/b978-0-12-822726-8.00010-5
摘要
Magnetic resonance imaging (MRI) is one of the most fascinating applications of advanced physics in modern society. MRI combines multiple physical concepts to enable noninvasive imaging based on a magnetization signal that forms within the subject. An unparalleled wealth of contrast mechanisms can be achieved with MRI, making it integral to many areas of diagnostic radiology. In this chapter, we set out to explain the basics of MRI physics to provide the background necessary to understand advanced MRI reconstruction techniques. We will look at the theory of nuclear magnetism and introduce the basic concepts required to generate the nuclear magnetic resonance (NMR) signal. Subsequently, the process of spatial localization of the NMR signal that makes possible image formation is explained. With this knowledge, we will discuss basic MRI pulse sequences. To conclude, we lay out the basic characteristics and hardware components of modern MRI machines.
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