Part I--Fundamentals Chapter 1: Structure of the Normal Brain and its Appearance on Imaging Chapter 2: General Appearance of Edema and Hemorrhage on computed tomography, magnetic resonance and ultrasound Chapter 3: The Basics of Contrast and its Role in Dating Chapter 4: How the Imaging Appearance of Edema and Hemorrhage Change over Time on computed tomography, magnetic resonance and ultrasound-- Dynamic (Acute) Dating Chapter 5: Patterns of Parenchymal Ischemic injury--Pattern (Chronic) Dating Part II--Application to the Medical-Legal Setting Chapter 6: Principles of Dynamic Dating in the Medical Legal Setting Chapter 7: Principles of Pattern Dating in the Medical Legal Setting Chapter 8: Therefore, What can be said - What can't be said.... Chapter 9: The Root Causes of Uncertainty in Dating Neurologic events Based on Imaging Findings