11.1 Introduction11.2 Laws Governing NMR and MRI11.2.1 Faraday’s Law11.2.2 Larmor Frequency11.2.3 Bloch Equation11.3 Material Properties11.3.1 Gyromagnetic Ratio11.3.2 Proton Density11.3.3 T1 and T2 Relaxation Times11.4 NMR Signal Detection11.5 MRI Signal Detection or MRI Imaging11.5.1 Slice Selection11.5.2 Phase Encoding11.5.3 Frequency Encoding11.6 MRI Construction11.6.1 Main Magnet11.6.2 Gradient Magnet11.6.3 RF Coils11.6.4 K-Space Imaging11.7 T1, T2 and Proton Density Image11.8 MRI Modes or Pulse Sequence11.8.1 Spin Echo Imaging11.8.2 Inversion Recovery11.8.3 Gradient Echo Imaging11.9 MRI Artifacts11.9.1 Motion Artifact11.9.2 Metal Artifact11.9.3 Inhomogeneity Artifact11.9.4 Partial Volume Artifact11.10 Summary11.11 ExercisesFigure 11.1Figure 11.2Figure 11.3Figure 11.4Figure 11.5Figure 11.6Figure 11.7Figure 11.8Figure 11.9Figure 11.10Figure 11.11Figure 11.12Figure 11.13Figure 11.14Figure 11.15Figure 11.16Figure 11.17Figure 11.18Figure 11.19Figure 11.20Table 11.1Table 11.2Table 11.3Table 11.4