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Craniofacial Trauma, An Issue of Neuroimaging Clinics, E-Book

Craniofacial Trauma, An Issue of Neuroimaging Clinics, E-Book

Deborah R. Shatzkes

(2014)

Additional Information

Abstract

Editor Deborah Shatzkes and authors review important areas in Craniofacial Trauma. Articles will include: Optimizing craniofacial CT technique, Orbital and facial fractures, Orbital and facial soft tissue injuries, Skull base fractures and their complications, Temporal bone trauma, Pediatric considerations in craniofacial trauma, Cerebrovascular trauma, Surgical perspectives in craniofacial trauma, and more!

Table of Contents

Section Title Page Action Price
Front Cover Cover
Craniofacial Trauma\r i
Copyright\r ii
Neuroimaging Clinics Of North America\r iv
Contributors v
Contents vii
Foreword xi
Preface\r xiii
Optimizing Craniofacial CT Technique 395
Key points 395
Introduction 395
CT radiation dose measurement 396
CT acquisition parameters 397
Beam Energy 397
Photon Fluence 397
Collimation, Table Speed, and Pitch 397
Current strategies in dose reduction 398
Automated Tube Current Modulation 398
Adaptive Dose Shielding 398
Image Reconstruction Algorithms 398
Future advancement in dose reduction 399
Automated Organ-based Current Modulation 399
Automated (Optimized) Tube Voltage Modulation 400
Noise Reduction Algorithm with Image Reconstruction and Data Processing 400
Three-dimensional Reconstruction 400
CBCT 400
Dual-energy CT 402
Summary 404
References 404
Orbital and Facial Fractures 407
Key points 407
Introduction 407
Frontal sinus 407
Frontal Sinus (Nasofrontal) Outflow Tract 408
Management of Frontal Sinus Fractures 408
Orbital trauma 409
Blow-Out Orbital Fractures 409
Blow-In Orbital Fractures 410
Proptosis and Optic Nerve Injury 410
Complications of Orbital Roof Fractures 411
Cerebrospinal fluid leak 411
Midface fractures 413
Zygomaticomaxillary Complex Fractures 413
Le Fort Fractures 415
Nasal Bones and Septum 415
Naso-Orbito-Ethmoid Fractures 416
Dental 418
Mandible 419
Subcondylar Fractures and Condylar Dislocations 419
Coronoid Process Fractures 421
Summary 423
References 423
Orbital Soft-Tissue Trauma 425
Key points 425
Imaging techniques 425
Orbital anatomy 425
Choice of imaging 425
Radiography 426
Computed Tomography 426
Ultrasonography 426
MR Imaging 427
Anterior chamber injuries 427
Traumatic Hyphema 427
Subconjunctival Hemorrhage 427
Injury to iris and ciliary bodies 427
Lens injuries 428
Subluxation and Dislocation 428
Traumatic Cataract 428
Globe injuries 429
Globe Rupture 429
Globe Luxation 430
Posterior segment injuries 430
Vitreous Hemorrhage 430
Chorioretinal injury 431
Commotio Retinae 432
Penetrating ocular injuries 432
Carotid-cavernous fistulas 434
Optic nerve injury 434
Acknowledgments 436
References 436
Skull Base Fractures and Their Complications 439
Key points 439
Introduction 439
Normal anatomy 439
Pathology 440
Anterior Skull Base Fractures 442
Classification/Etiology 442
Complications 443
Central Skull Base Fractures 446
Classification/Etiology 446
Complications 447
Posterior Skull Base Fractures 450
Classification/Etiology 450
Complications 451
Diagnostic criteria 453
Differential diagnosis 453
Imaging findings 456
Pitfalls in detection of skull base trauma and complications 459
What the referring physician needs to know 461
Future considerations/summary 462
References 463
Imaging of Temporal Bone Trauma 467
Key points 467
Introduction 467
Temporal bone imaging 467
Fracture classification 468
Traditional Classification: Longitudinal and Transverse 468
Alternative Classification Schemes 468
Complications 470
Hearing Loss 470
CHL 471
Ossicular Injury 471
Imaging of ossicular injury 473
Treatment of ossicular injury 476
SNHL 476
Vertigo 477
PLF 478
CSF Leak 478
Imaging findings of CSF leak 480
Treatment of CSF leak 481
Facial Nerve Injury 482
Treatment of facial nerve injury 482
Vascular Injury 483
Summary 485
References 485
Cerebrovascular Trauma 487
Key points 487
Introduction 487
Historical Perspective and Significance of Traumatic Blunt Cerebrovascular Injury 487
Anatomy and pathology 490
Mechanisms and Patterns of Cerebrovascular Injury 490
Pathophysiology of BCVI 491
Imaging 491
Imaging Findings of BCVI 491
BCVI Classification 494
Role of Imaging in BCVI Screening 496
Role of Imaging in BCVI Diagnosis 501
BCVI Treatment and Follow-Up 505
Summary 509
References 509
Pediatric Considerations in Craniofacial Trauma 513
Key points 513
Introduction 513
Normal growth and development 513
Normal variant lucencies in the skull base 514
Normal anterior skull base ossification 516
Paranasal sinus development 518
Distribution and causes of pediatric facial fractures 519
Toppled furniture 523
Nonaccidental, inflicted trauma, and child abuse 524
ATV accidents 524
Impalement injuries 526
Summary 528
References 528
Surgical Perspectives in Craniofacial Trauma 531
Key points 531
Introduction 531
Anatomy 532
Visceral Anatomy 532
Vascular Anatomy 532
Skeletal Anatomy 532
Imaging findings 533
Pathologic abnormality 534
Cranial Injuries 534
Hemorrhagic injuries 534
Intra-axial injury 536
Extra-axial injuries 536
Surgical management of traumatic brain injury 537
Vascular Injuries 537
Skeletal Injuries 542
Skull fractures 542
Frontal sinus fractures 542
Nasal bone fractures 543
Naso-orbital-ethmoidal fractures 543
Injuries to the orbit and orbital contents 544
Fractures of the zygoma and zygomatic-maxillary complex 545
Midface fractures 545
Mandibular fractures 547
Temporal bone fractures 549
Summary 551
Acknowledgments 551
References 551
Index 553