Where Does the Signal Come From?
Robert Thomen1
1University of Missouri, United States
Synopsis
Where exactly does the signal of an NMR experiment come from? How is tissue contrasted in an MR image? What can be done to improve signal? What are T1, T2, and Boltzmann Magnetization? In this lecture we will examine the foundations of the NMR experiment and build an expression for the detected signal which determines the voxel brightness in MRI. We will take a conceptual approach to understanding NMR beginning with the NMR experiment, precession, nuclear magnetization, and relaxation.
The NMR Experiment and Signal
In this lecture, we will introduce the basics of the NMR phenomenon including the nuclear magnetic moment, Larmor relationship, and the individual component of the NMR signal. A conceptual approach will be taken. In addition, the basics of signal dynamics including T1, T2, and image weighting mechanisms will be discussed. By the end of the lecture, the audience will be able to identify parameters which influence the detected signal in an NMR experiment and understand the underlying physical principles which govern signal intensity and detection in MR images.Acknowledgements
No acknowledgement found.References
No reference found.
Proc. Intl. Soc. Mag. Reson. Med. 30 (2022)