Basic mechanism of the MRI signal
Description
Protons of hydrogen nuclei from the water act as small magnets, spinning around their own axis, while in a strong magnetic field, they align with the magnetic field. Magnetic moments and net magnetization change when an excitation with radiofrequency (RF) pulse is applied. Relaxation causes the MRI signal to recover in the longitudinal direction according to the time constant T1 or decay in the transverse plane according to time constant T2.
Acknowledgements
References
Berger A. Magnetic resonance imaging. BMJ. 2002 Jan 5;324(7328):35. doi: 10.1136/bmj.324.7328.35. PMID: 11777806; PMCID: PMC1121941.
Grover VP, Tognarelli JM, Crossey MM, Cox IJ, Taylor-Robinson SD, McPhail MJ. Magnetic Resonance Imaging: Principles and Techniques: Lessons for Clinicians. J Clin Exp Hepatol. 2015 Sep;5(3):246-55. doi: 10.1016/j.jceh.2015.08.001. Epub 2015 Aug 20. PMID: 26628842; PMCID: PMC4632105.
Get started with this template for freeDon’t start from scratch.
Create professional scientific illustrations quickly and easily, even without any design expertise
- Get started with a huge library of editable icons and templates such as common biological pathways, anatomy, or genetics.
- Create figures that effectively communicate your research in half the time using our editable icons.
- Use our PDB tool to quickly generate and customize protein structures
.gif)
