AJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Dalchow, C. V.
Right arrow Articles by Werner, J. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Dalchow, C. V.
Right arrow Articles by Werner, J. A.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Hotlight (NEW!)
Right arrow
What's Hotlight?

Digital Volume Tomography: Radiologic Examinations of the Temporal Bone

Carsten V. Dalchow1, Alfred L. Weber2, Naoaki Yanagihara3, Siegfried Bien4 and Jochen A. Werner1

1 Department of Otolaryngology, Head and Neck Surgery, Philipps University Marburg, Deutschhausstr. 3, 35037 Marburg, Germany.
2 Department of Radiology, Massachusetts Eye and Ear Infirmary, Boston, MA.
3 Department of Otolaryngology, Takanoko Hospital, Matsuyama Ehime, Japan.
4 Department of Neuroradiology, Philipps University Marburg, Marburg, Germany.


Figure 1
View larger version (111K):

[in a new window]
  		Fig. 1 —General view of digital volume tomograph (Accuitomo, J. Morita Manufacturing Corp.) with patient's examination chair, radiograph device, 4-inch (10-cm) image intensifier, and control panel integrated in right column.

 

Figure 2
View larger version (114K):

[in a new window]
  		Fig. 2 —Holding device (Temporal Bone Holder, Model Wuerzburg, Storz Medical) with temporal bone specimen indicating positioning for digital volume tomography.

 

Figure 3
View larger version (138K):

[in a new window]
  		Fig. 3A —Digital volume tomography images show general view of middle and inner ear of temporal bone specimen. Co = cochlea, ICA = internal carotid artery, JB = jugular bulb, MEC = middle ear cavity. Image shows MEC and inner ear with labyrinth and pneumatized temporal bone with incudostapedial joint. Vestibule and semicircular canals (yellow arrows) and facial nerve canal (black arrow) are seen. Co = cochlea, ICA = internal carotid artery.

 

Figure 4
View larger version (129K):

[in a new window]
  		Fig. 3B —Digital volume tomography images show general view of middle and inner ear of temporal bone specimen. Co = cochlea, ICA = internal carotid artery, JB = jugular bulb, MEC = middle ear cavity. Image shows vestibule (yellow arrow) and semicircular canals, facial nerve canal (black arrow), stapes arch (red arrow), jugular bulb (JB), and long process of incus (white arrow).

 

Figure 5
View larger version (116K):

[in a new window]
  		Fig. 3C —Digital volume tomography images show general view of middle and inner ear of temporal bone specimen. Co = cochlea, ICA = internal carotid artery, JB = jugular bulb, MEC = middle ear cavity. Image shows malleus head (green arrow), malleus handle (gray arrow), vestibule and semicircular canals (yellow arrow), and facial nerve canal (black arrow).

 

Figure 6
View larger version (135K):

[in a new window]
  		Fig. 3D —Digital volume tomography images show general view of middle and inner ear of temporal bone specimen. Co = cochlea, ICA = internal carotid artery, JB = jugular bulb, MEC = middle ear cavity. Image shows entire facial nerve canal (black arrows) between ganglion geniculi (gg) and foramen stylomastoideum (fs) and vestibule and semicircular canals (yellow arrow).

 

Figure 7
View larger version (124K):

[in a new window]
  		Fig. 4A —Comparison of otoscopic views of ossiculoplasty with operation microscope (A, C, E) and radiologic control digital volume tomography images (B, D, F) of temporal bone specimen. Co = cochlea, EAC = external auditory canal, ET = eustachian tube, IAC = internal auditory canal, ICA = internal carotid artery, TM = tympanic membrane. Images show autologous incus interposition (green arrows), oval window niche (white arrow, A), round window niche (black arrow, A), and vestibule (yellow arrow, B). White arrow in B indicates long process of incus, gray arrow indicates malleus handle atop incus interposition.

 

Figure 8
View larger version (136K):

[in a new window]
  		Fig. 4B —Comparison of otoscopic views of ossiculoplasty with operation microscope (A, C, E) and radiologic control digital volume tomography images (B, D, F) of temporal bone specimen. Co = cochlea, EAC = external auditory canal, ET = eustachian tube, IAC = internal auditory canal, ICA = internal carotid artery, TM = tympanic membrane. Images show autologous incus interposition (green arrows), oval window niche (white arrow, A), round window niche (black arrow, A), and vestibule (yellow arrow, B). White arrow in B indicates long process of incus, gray arrow indicates malleus handle atop incus interposition.

 

Figure 9
View larger version (111K):

[in a new window]
  		Fig. 4C —Comparison of otoscopic views of ossiculoplasty with operation microscope (A, C, E) and radiologic control digital volume tomography images (B, D, F) of temporal bone specimen. Co = cochlea, EAC = external auditory canal, ET = eustachian tube, IAC = internal auditory canal, ICA = internal carotid artery, TM = tympanic membrane. Images show partial gold implant (red arrows), malleus handle (gray arrows), round window niche (black arrow, C), and vestibule (yellow arrow, D).

 

Figure 10
View larger version (104K):

[in a new window]
  		Fig. 4D —Comparison of otoscopic views of ossiculoplasty with operation microscope (A, C, E) and radiologic control digital volume tomography images (B, D, F) of temporal bone specimen. Co = cochlea, EAC = external auditory canal, ET = eustachian tube, IAC = internal auditory canal, ICA = internal carotid artery, TM = tympanic membrane. Images show partial gold implant (red arrows), malleus handle (gray arrows), round window niche (black arrow, C), and vestibule (yellow arrow, D).

 

Figure 11
View larger version (117K):

[in a new window]
  		Fig. 4E —Comparison of otoscopic views of ossiculoplasty with operation microscope (A, C, E) and radiologic control digital volume tomography images (B, D, F) of temporal bone specimen. Co = cochlea, EAC = external auditory canal, ET = eustachian tube, IAC = internal auditory canal, ICA = internal carotid artery, TM = tympanic membrane. Images show titanium implant (blue arrows) (titanium Total Implant [7.5 mm], Spiggle & Theis), malleus handle (gray arrows), round window niche (black arrow, E) and vestibule (yellow arrow, F).

 

Figure 12
View larger version (128K):

[in a new window]
  		Fig. 4F —Comparison of otoscopic views of ossiculoplasty with operation microscope (A, C, E) and radiologic control digital volume tomography images (B, D, F) of temporal bone specimen. Co = cochlea, EAC = external auditory canal, ET = eustachian tube, IAC = internal auditory canal, ICA = internal carotid artery, TM = tympanic membrane. Images show titanium implant (blue arrows) (titanium Total Implant [7.5 mm], Spiggle & Theis), malleus handle (gray arrows), round window niche (black arrow, E) and vestibule (yellow arrow, F).

 

Figure 13
View larger version (126K):

[in a new window]
  		Fig. 5A —Artifact-free digital tomography images of temporal bone specimen. Co = cochlea, EAC = external auditory canal, IAC = internal auditory canal. Images of stapes piston show long process of incus (white arrow, A), stapes footplate, and tympanic segment of facial canal (black arrows). Titanium implant (green arrow, A) (K-Piston [5.25 x 0.4 mm], Heinz Kurz GmbH) and gold implant (red arrow, B) (Gold Piston [5.5 x 0.4 mm], Heinz Kurz GmbH) are recognizable reaching from incus into vestibule (yellow arrows).

 

Figure 14
View larger version (125K):

[in a new window]
  		Fig. 5B —Artifact-free digital tomography images of temporal bone specimen. Co = cochlea, EAC = external auditory canal, IAC = internal auditory canal. Images of stapes piston show long process of incus (white arrow, A), stapes footplate, and tympanic segment of facial canal (black arrows). Titanium implant (green arrow, A) (K-Piston [5.25 x 0.4 mm], Heinz Kurz GmbH) and gold implant (red arrow, B) (Gold Piston [5.5 x 0.4 mm], Heinz Kurz GmbH) are recognizable reaching from incus into vestibule (yellow arrows).

 

Figure 15
View larger version (131K):

[in a new window]
  		Fig. 5C —Artifact-free digital tomography images of temporal bone specimen. Co = cochlea, EAC = external auditory canal, IAC = internal auditory canal. Image shows platinum-band polytetrafluoroethylene (Teflon, DuPont) piston (blue arrow) (Platinum-Teflon Prosthesis Type Schuhknecht [5.5 x 0.6 mm], Heinz Kurz GmbH) at level close to stapes footplate. Vestibule (yellow arrow) and tympanic segment of facial canal (black arrow) are also visible.

 

Figure 16
View larger version (139K):

[in a new window]
  		Fig. 6 —Digital tomography image of temporal bone specimen shows intracochlear position of cochlear implant (Nucleus 24 Contour, Cochlear Ltd.) in basal turn (red arrow) of cochlea and cochleostomy (green arrow). Eight single basal electrodes are identified with this image in this section. MEC = middle ear cavity, EAC = external auditory canal.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2006 by the American Roentgen Ray Society.