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vii

C

ont

ent

s

Foreword

xiii

Stuart E. Mervis, MD, FACRPreface

xv

Acknowledgments

xvi

1 Introduction to Emergency Imaging

1

Observing and Interpreting

Reporting

Grading and Measuring

Incidental Findings

Learning Radiology

CT Window and Level

Approximate Radiation Doses for Emergency Studies (mSV)CT Contrast Administration, Risks, and Adverse Reactions

2 Brain

9

Approach

Imaging and Anatomy

Clinical Presentations and Dierential DiagnosisCerebral Edema Patterns

Anatomic Variants and Incidental FindingsSkull Fracture

Epidural Hematoma

Acute Subdural Hematoma

Subacute and Chronic Subdural HematomaSubdural Hygroma

Traumatic Subarachnoid Hemorrhage

Cerebral Contusion

Diuse Axonal Injury

Pneumocephalus

Cerebral Swelling

Cerebral Herniation

Posttraumatic Atrophy and EncephalomalaciaHypertensive Hemorrhage

Amyloid Angiopathy

Subarachnoid Hemorrhage

Arteriovenous Malformation

Cavernous Malformation

Anoxic Injury

Cerebral Infarct: Arterial Territories