How MRI Works: Part 1 - NMR Basics.
First in a series on how MRI works. This video deals with NMR basis such as spin, precession, T1 and T2, TR and TE, and Boltzmann Magnetization.
0:00 - Introduction
1:22 - Nuclear Magnetic Resonance
4:10 - Inside the MRI Scanner
7:50 - The Proton, Spin, and Precession
11:34 - Signal Detection and the Larmor Equation
14:10 - Flip Angle
15:30 - Ensemble Magnetic Moment
16:34 - Free Induction Decay and T2
18:43 - T2 Weighting and TE
21:46 - Spin Density Imaging
24:18 - T1 Relaxation
25:45 - T1 Weighting and TR
27:01 - The NMR Experiment and Rotating Frame
28:57 - Excitation: the B1 field
30:14 - Measuring Longitudinal Magnetization
31:34 - The MR Contrast Equation
34:42 - Boltzmann Magnetization and Polarization
40:09 - Hyperpolarization
41:42 - Outro
A video explaining the physics of ultrasound and enhancing students' ultrasound knowledge. There are other more specific ultrasound training podcasts on the UltrasoundPod channel.
This video discusses neuroimaging, covering four of the most common types of neuroimaging: computerized axial tomography (CAT), magnetic resonance imaging (MRI), positron emission tomography (PET), and functional magnetic resonance imaging (fMRI).
Transcript included.
The video discusses how fMRI works, what is represented in a typical fMRI image, and some of the methodological problems associated with the use of fMRI. Transcript included.
