How MRI Works Part 1 NMR Basics

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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. • Part 2 - The Spin Echo - • How MRI Works - Part 2 - The Spin Echo • Part 3 - Fourier Theory and k-Space: • How MRI Works - Part 3 - Fourier Tran... • Part 4 - The Gradient Echo Sequence : • How MRI Works - Part 4 - The Gradient... • Slides can be purchased here: • / powerpoint-slides-how-mri-works-part-1-18496 • 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

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