3D CT Scan Middle and Inner Ear, presented by Dr Paulose, ENT Consultant Surgeon

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. Anatomy of the Ear

3. Middle and Inner Ear

4. Middle and Inner Ear

5. Right Inner ear

6. Malleus, Incus, Stapes

7. Normal Middle Ear Ossicles

8. Inner Ear Adaptation
Ballet Dancers Don’t get vertigo!!!!

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. 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. 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. 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. 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. 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. 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. Microtia

17. Atresia-Ear Canal

18. Microtia-2

19. Rosary Bead:Paulo Sign

20. Rosary Bead-2

21. Rosary Bead-3

22. Mastoid Cavity

23. Post Stapedectomy

24. 3D CT

25. Bony And Membranous Labyrinth

26. 3D CT Middle Ear

27. Eagles Syndrome-Stylohyoid

28. Ossicular Deformity

29. 2D CT Temporal Bone

30. Post Traumatic Vertigo

31. Mastoiditis Right Ear

32. Thank You