Labyrinthitis ossificans: how accurate is MRI in predicting cochlear obstruction?
To determine the accuracy of preoperative MRI in predicting cochlear obstruction in pediatric patients with a history of bacterial meningitis. A case series with chart review was performed at a tertiary care multidisciplinary cochlear implant program. Forty-five children with hearing loss that resul...
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Published in | Otolaryngology-head and neck surgery Vol. 140; no. 5; p. 692 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
England
01.05.2009
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Abstract | To determine the accuracy of preoperative MRI in predicting cochlear obstruction in pediatric patients with a history of bacterial meningitis.
A case series with chart review was performed at a tertiary care multidisciplinary cochlear implant program. Forty-five children with hearing loss that resulted from bacterial meningitis were implanted from 1991 to 2006. Twenty-five children had preoperative MRI with high-resolution axial T2-weighted images to assess for cochlear patency.
Seventeen of 25 patients (68%) had surgical evidence of cochlear obstruction. Six patients (37.5%) required circummodiolar drill-outs, and one patient (6.25%) underwent placement of a double array cochlear implant. The nine remaining patients (56%) with cochlear obstruction required removal of fibrous tissue or drilling of the inferior basal turn, but did not require manipulation of the ascending basal turn to achieve full electrode insertion. The sensitivity, specificity, and positive and negative predictive value of MRI predicting intraoperative cochlear obstruction with 95 percent confidence intervals was 94.1 percent (71-99), 87.5 percent (47-99), 94.1 percent (71-99) and 87.5 percent (47-99), respectively.
Preoperative high-resolution T2 MRI may be useful in predicting cochlear obstruction in patients with a prior history of bacterial meningitis. |
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AbstractList | To determine the accuracy of preoperative MRI in predicting cochlear obstruction in pediatric patients with a history of bacterial meningitis.
A case series with chart review was performed at a tertiary care multidisciplinary cochlear implant program. Forty-five children with hearing loss that resulted from bacterial meningitis were implanted from 1991 to 2006. Twenty-five children had preoperative MRI with high-resolution axial T2-weighted images to assess for cochlear patency.
Seventeen of 25 patients (68%) had surgical evidence of cochlear obstruction. Six patients (37.5%) required circummodiolar drill-outs, and one patient (6.25%) underwent placement of a double array cochlear implant. The nine remaining patients (56%) with cochlear obstruction required removal of fibrous tissue or drilling of the inferior basal turn, but did not require manipulation of the ascending basal turn to achieve full electrode insertion. The sensitivity, specificity, and positive and negative predictive value of MRI predicting intraoperative cochlear obstruction with 95 percent confidence intervals was 94.1 percent (71-99), 87.5 percent (47-99), 94.1 percent (71-99) and 87.5 percent (47-99), respectively.
Preoperative high-resolution T2 MRI may be useful in predicting cochlear obstruction in patients with a prior history of bacterial meningitis. |
Author | Lee, Kenneth H Isaacson, Brandon Booth, Timothy Kutz, Jr, Joe W Roland, Peter S |
Author_xml | – sequence: 1 givenname: Brandon surname: Isaacson fullname: Isaacson, Brandon email: brandon.isaacson@utsouthwestern.edu organization: Department of Otolaryngology-Head and Neck Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA. brandon.isaacson@utsouthwestern.edu – sequence: 2 givenname: Timothy surname: Booth fullname: Booth, Timothy – sequence: 3 givenname: Joe W surname: Kutz, Jr fullname: Kutz, Jr, Joe W – sequence: 4 givenname: Kenneth H surname: Lee fullname: Lee, Kenneth H – sequence: 5 givenname: Peter S surname: Roland fullname: Roland, Peter S |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/19393413$$D View this record in MEDLINE/PubMed |
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Snippet | To determine the accuracy of preoperative MRI in predicting cochlear obstruction in pediatric patients with a history of bacterial meningitis.
A case series... |
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SubjectTerms | Child Cochlea - pathology Cochlear Implantation Cochlear Implants Female Hearing Loss, Sensorineural - etiology Hearing Loss, Sensorineural - surgery Humans Labyrinthitis - diagnosis Magnetic Resonance Imaging - methods Male Meningitis, Bacterial - complications Ossification, Heterotopic - diagnosis Predictive Value of Tests Preoperative Care Sensitivity and Specificity |
Title | Labyrinthitis ossificans: how accurate is MRI in predicting cochlear obstruction? |
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