How MRI Works Part 1 NMR Basics

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 Part 2