New method of using reconstructed images for assessment of patency of intracochlear spaces for cochlear implant candidates

The Laryngoscope
Shotaro KarinoTatsuya Yamasoba

Abstract

A new method of reconstruction using multidetector-row helical computed tomography (MDCT) was applied for assessment of cochlear patency in cochlear implantation candidates. Descriptive study comparing radiologic and surgical findings in eight radiologically normal cochleas and four abnormal cases. In unusual cases including cochlear ossification and misinsertion of electrodes, intracochlear space was evaluated on two types of reconstructed images: the "basal turn plane" that was vertical to the modiolus and contained whole basal turn was effective in the assessment of the lining of the inner bony wall of the otic capsule; "cochlear cross plane" images allowed evaluation of the patency of the intracochlear space and the location of inserted electrodes at the sections vertical to the direction of insertion of the electrodes. Preoperative evaluation was useful for predicting possible problems in electrode insertion and therefore helped in decision-making in regards to surgical strategies, especially in candidates with a high probability of cochlear ossification such as those with meningitis and otosclerosis. Furthermore, the new reconstruction method also provided useful information on the position of the cochlear implant electro...Continue Reading

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Citations

Jan 29, 2008·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Ken ItoTatsuya Yamasoba
Apr 28, 2009·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Manuel SainzJose Manuel Ballesteros
Jun 5, 2007·Otolaryngologic Clinics of North America·Colin L W Driscoll, John I Lane
Nov 12, 2005·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Ming-Tsung ChuangWei-Chen Lin
Jan 15, 2014·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Kazunori IchikawaTatsuya Yamasoba
Aug 31, 2018·Cochlear Implants International·Hannes PetersenLaura Viani

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