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Cochlear implants: three-dimensional localization by means of coregistration of CT and conventional radiographs
B R Whiting1, K T Bae, M W Skinner
1Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110, USA. whitingb@mir.wustl.edu
Radiology
|November 1, 2001
Abstract:
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.