m mazon imaging of the inner ear jfim 2014
TRANSCRIPT
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Área de Imagen Médica
v
CASO • Awake• Overlapping• Content
Ø AnatomyReviewØ Pathology
OBJECTIVES
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Área de Imagen Médica
v
CASO • Awake• Overlapping• Content
Ø AnatomyReviewØ Pathology
OBJECTIVES
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Área de Imagen Médica
v
• Awake• Overlapping• Content
Ø AnatomyReviewØ Pathology
OBJECTIVES
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Área de Imagen Médica
IMAGING TECHNIQUES
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Área de Imagen Médica
1. ANATOMY REVIEW
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Área de Imagen Médica
EMBRYOLOGICAL
1. ANATOMY REVIEW
FUNCTIONAL
1. Squamous 2. Mastoid 3. Petrous 4. Tympanic 5. Styloid
1. External Ear 2. Mastoid and ME 3. Facial Nerve 4. Inner Ear 5. IAC 6. Petrous Apex
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Área de Imagen Médica
1. External Ear 2. Mastoid and ME 3. Facial Nerve 4. Inner Ear 5. IAC 6. Petrous Apex
1. ANATOMY REVIEW
FUNCTIONAL
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V
V
T
T
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Área de Imagen Médica
2. PATHOLOGY
• CONGENITAL
• ACQUIRED
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Role of IMAGING in SNH (Sensorineural Hearing loss) • Detection & characterization (30%) • Surgical map
• VII cranial nerve • Yugular vein, Carotid artery • Route of acces
• CI (cochlear implantation) Ø Cochlear permeability Ø Cochlear nerve patency
INNER EAR MALFORMATIONS
Más-Estellés, F. Rambla-Vilar, J. Uehara, M. et al. (2011, november). Imaging of Vestibulocochlear Nerve Deficiency: Impact on Cochlear Implantation. Educational Exhibit, RSNA Anual Meeting, Chicago. USA
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LABYRINTHINE APLASIA
**
*
3w
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COCHLEAR APLASIA
*
*
**1 2
2
3w
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COMMON CAVITY
Vs
4w
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INCOMPLETE PARTITION Type I 5w
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INCOMPLETE PARTITION Type II 7w
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INCOMPLETE PARTITION Type III
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COCHLEAR HYPOPLASIA
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LARGE VESTIBULAR AQUEDUCT SYNDROME
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VESTIBULOCOCHLEAR NERVE DEFICIENCY
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MALFORMATIONS of the VESTIBULE & SCC
*
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SEMICIRCULAR CANAL DEHISCENCE
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• Labyrinthine Aplasia • Cochlear Aplasia • Common Cavity • IP - I • IP - II • IP - III
INNER EAR MALFORMATIONS
• Cochlear Hypoplasia • Large Vestibular Acqueduct S. • Vestibulocochlear N. Deficiency • Malformations Vestibule & SCC • SCC Dehiscence
ANALYZE > memorize
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ACQUIRED PATHOLOGY
• Otospongiosis • Labyrinthitis • Labyrinthine hemorrage • Menière’s Disease • Intralabyrinthine Schwannoma • Endolymphatic Sac Tumor
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OTOSPONGIOSIS
2
1bV.1aF.Veillon 2V.
3V. 4V.
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LABYRINTHITIS Acute
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LABYRINTHITIS Fibrous
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LABYRINTHITIS Ossificans
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LABYRINTHITIS
Labyrinthitis ossificans vs Aplasia
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LABYRINTHINE HEMORRAGE
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MENIÈRE’S DISEASE
Baráth K, Schuknecht B, Naldi AM et al. Detection and grading of endolymphatic hydrops in Menière disease using MR imaging. AJNR Am J Neuroradiol. 2014 Jul;35(7):1387-92
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MENIÈRE’S DISEASE
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INTRALABYRINTHINE SCHWANNOMA
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ENDOLYMPHATIC SAC TUMOR
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Área de Imagen Médica
DI:Head&Neck,Hansbergeretal.2ndEdiRon,2010 M.Mazón,basedonSenarouglu,2014 otopathologynetwork.org
Acknowledgments: • E. Pont, F. Mas-Estellés, F. Menor, P. Montesinos, M. A. Sánchez • Division of Neuroradiology & R. Head & Neck • Your attention.