Verification of computed tomographic estimates of cochlear implant array position: a micro-CT and histologic analysis.
Objective: To determine the efficacy of clinical computed tomographic (CT) imaging to verify postoperative electrode array placement in cochlear implant (CI) patients.Study Design: Nine fresh cadaver heads underwent clinical CT scanning, followed by bilateral CI insertion and postoperative clinical...
| Publicado en: | Otology & Neurotology Vol. 32; no. 6; pp. 980 - 987 |
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| Autores principales: | , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Lippincott Williams & Wilkins
2011 Aug
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=108190913&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 108190913 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15317129 I6D jtl: Otology & Neurotology issn: 15317129 maglogo: N pubinfo: dt: 2011 Aug vid: 32 iid: 6 pid: 433 pub: Lippincott Williams & Wilkins place: Baltimore, Maryland artinfo: ui: 108190913 108190913 NLM21725264 2011220132 10.1097/MAO.0b013e3182255915 NLM21725264 PMC3173021 108190913 ppf: 980 ppct: 7 formats: tig: atl: Verification of computed tomographic estimates of cochlear implant array position: a micro-CT and histologic analysis. aug: au: Teymouri J Hullar TE Holden TA Chole RA Teymouri, Jessica Hullar, Timothy E Holden, Timothy A Chole, Richard A affil: Department of Program in Audiology and Communication Sciences, Washington University School of Medicine, St. Louis, MO 63110, USA sug: subj: Cochlea Radiography Temporal Bone Radiography Cochlea Surgery Cochlear Implant Temporal Bone Surgery ab: Objective: To determine the efficacy of clinical computed tomographic (CT) imaging to verify postoperative electrode array placement in cochlear implant (CI) patients.Study Design: Nine fresh cadaver heads underwent clinical CT scanning, followed by bilateral CI insertion and postoperative clinical CT scanning. Temporal bones were removed, trimmed, and scanned using micro-CT. Specimens were then dehydrated, embedded in either methyl methacrylate or LR White resin, and sectioned with a diamond wafering saw. Histology sections were examined by 3 blinded observers to determine the position of individual electrodes relative to soft tissue structures within the cochlea. Electrodes were judged to be within the scala tympani, scala vestibuli, or in an intermediate position between scalae.Results: The position of the array could be estimated accurately from clinical CT scans in all specimens using micro-CT and histology as a criterion standard. Verification using micro-CT yielded 97% agreement, and histologic analysis revealed 95% agreement with clinical CT results.Conclusion: A composite, 3-dimensional image derived from a patient's preoperative and postoperative CT images using a clinical scanner accurately estimates the position of the electrode array as determined by micro-CT imaging and histologic analyses. Information obtained using the CT method provides valuable insight into numerous variables of interest to patient performance such as surgical technique, array design, and processor programming and troubleshooting. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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