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3D CT Middle and Inner Ear

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Imaging of the temporal bone
Imaging of the temporal bone
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3D CT Middle and Inner Ear

  1. 1. 3D CT Scan Middle and Inner Ear Dr.K.O.Paulose FRCS DLO Consultant ENT Surgeon Jubilee Hospital, Trivandrum, Kerala, India www.drpaulose.com, www.snorefreesleep.com
  2. 2. Anatomy of the Ear
  3. 3. Middle and Inner Ear
  4. 4. Middle and Inner Ear
  5. 5. Right Inner ear
  6. 6. Malleus, Incus, Stapes
  7. 7. Normal Middle Ear Ossicles
  8. 8. Inner Ear Adaptation Ballet Dancers Don’t get vertigo!!!!
  9. 9. Use of 3D VR CT 3D VR CT images are very useful in studying the congenital malformations, 3D VR CT images are very useful in studying the congenital malformations, These 3 D images are a valuable too for ENT surgeons treating inner and middle ear disorders.
  10. 10. Volume Rendering Volume-rendered (VR) images can be sectioned in any plane and rotated in space, allowing 3D insight into the anatomy of the temporal bone.
  11. 11. Inner Ear-Balance And Hearing The bony labyrinth contains the membranous labyrinth, a complex interconnected series of membranous sacs and ducts that are primarily responsible for balance and hearing.
  12. 12. 3D CT Vs 2D CTScan 3D multiplanar reformatted images from conventional CT data gives a better understanding of anatomy and pathology of Temporal bone.
  13. 13. 3D CT Reconstruction 3D reconstruction based on the image data from spiral high-resolution CT using special software, is performed by segmentation, volume-rendering and surface- rendering algorithms on a personal computer.
  14. 14. How Useful 3D CT Inner Ear It was found that 3D-CT was useful in observing the minute structure of the inner ear in that it could ascertain spatial relationships and minute constrictions and protrusions that could not be detected by 2D analysis
  15. 15. How 3D CT Constructed Based on spiral computer tomography data three dimensional reconstruction of temporal bone have been made easy these days. 3dimensional CT is a valuable source of supplementary information on inner ear disease and ossicular chain continuity.
  16. 16. Microtia
  17. 17. Atresia-Ear Canal
  18. 18. Microtia-2
  19. 19. Rosary Bead:Paulo Sign
  20. 20. Rosary Bead-2
  21. 21. Rosary Bead-3
  22. 22. Mastoid Cavity
  23. 23. Post Stapedectomy
  24. 24. 3D CT
  25. 25. Bony And Membranous Labyrinth
  26. 26. 3D CT Middle Ear
  27. 27. Eagles Syndrome-Stylohyoid
  28. 28. Ossicular Deformity
  29. 29. 2D CT Temporal Bone
  30. 30. Post Traumatic Vertigo
  31. 31. Mastoiditis Right Ear
  32. 32. Thank You

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