Cochlear implants: three-dimensional localization by means of coregistration of CT and conventional radiographs.
With use of radiopaque implanted objects as internal fiducial markers, the authors developed and evaluated a technique for coregistering computed tomographic (CT) and computed radiographic images to help determine three-dimensional location information for implant electrodes in the cochlea in phantoms and patients. Three-dimensional positional data from CT were assigned on a radiograph, which permitted identification of individual cochlear electrode locations that were not depicted at CT.
Whiting
B R
BR
Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110, USA. whitingb@mir.wustl.edu
Bae
K T
KT
Skinner
M W
MW
D000328:Adult; D000368:Aged; D003051:Cochlea / Q000000981:diagnostic imaging*; D003054:Cochlear Implants; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019047:Phantoms, Imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*