Graeme Clark Collection

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    Post mortem study of the intracochlear position of the nucleus standard 22 electrode array
    XU, JIN ; Dahm, M. C. ; Tykocinski, Michael. ; Shepherd, Robert K. ; Clark, Graeme M. ( 2000)
    The final position of an intracochlear cochlear implant electrode array can vary depending on the pathology, the insertion technique used and the type of electrode array used. The distance of the electrodes from the target neural elements and the presence of intracochlear fibrous tissue or new bone formation are believed to affect the performance of the device. A post mortem study was conducted to assess these factors.
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    Phase-contrast radiography: a new x-ray technique for cochlear implant research
    XU, JIN ; Stevenson, A. W. ; Gao, D. ; Dahm, M. ; Wilkins, S. W. ; Clark, Graeme M. (Moduzzi Editore, 2000)
    This study examines the application of a new x-ray modality, phase contrast radiography, in temporal bone (TB) imaging. Preliminary results from TB samples have shown that phase-contrast imaging offers greater contrast for edge-type features and weakly absorbing soft-tissue resulting in improved visualization of anatomic details of inner ear and microelectrode structures. This is potentially valuable in the development of new electrode arrays for cochlear implants.