Detection of postoperative residual cholesteatoma with delayed contrast-enhanced MR imaging: initial findings
| العنوان: | Detection of postoperative residual cholesteatoma with delayed contrast-enhanced MR imaging: initial findings |
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| المؤلفون: | Monique Elmaleh-Bergès, Jean-Daniel Piekarski, F. Heran, M. Williams, F. Lafitte, Denis Ayache, Corinne Alberti |
| المصدر: | European Radiology. 13:169-174 |
| بيانات النشر: | Springer Science and Business Media LLC, 2003. |
| سنة النشر: | 2003 |
| مصطلحات موضوعية: | Adult, Gadolinium DTPA, Male, medicine.medical_specialty, Adolescent, medicine.medical_treatment, Contrast Media, Sensitivity and Specificity, Predictive Value of Tests, medicine, Humans, Radiology, Nuclear Medicine and imaging, Neuroradiology, Observer Variation, Cholesteatoma, Middle Ear, medicine.diagnostic_test, business.industry, Ultrasound, Cholesteatoma, Magnetic resonance imaging, Interventional radiology, General Medicine, Middle Aged, Tympanoplasty, medicine.disease, Magnetic Resonance Imaging, Predictive value of tests, Coronal plane, Female, Radiology, Tomography, X-Ray Computed, business |
| الوصف: | Our objective was to assess the value of delayed contrast-enhanced T1-weighted spin-echo MR imaging in the detection of residual cholesteatoma in patients who have undergone canal wall-up tympanoplasty procedure. The MR imaging was obtained prior to revision surgery in 18 patients with opacity of the post-operative cavity at CT examination 12-18 months after canal wall-up tympanoplasty. In each patient the following was performed: precontrast T1- and T2-weighted images; and early and delayed contrast-enhanced axial and coronal T1-weighted imaging. Early and delayed MR imaging results were separately compared with surgical second-look findings. Sensitivity, specificity, and predictive values were evaluated for early and delayed post-contrast MR imaging, compared with second-look surgery findings. A residual cholesteatoma was correctly identified in 8 of 9 cases with delayed contrast-enhanced T1-weighted MR imaging. Mean sensitivity, specificity, positive predictive value, and interobserver agreement (evaluated by kappa statistics) were, respectively, 85.2, 92.6, 92.6%, and kappa=0.78 for the delayed contrast-enhanced MR imaging technique. The same parameters were, respectively, 96.3, 33.3, 60.6, and 0.30 for the early contrast-enhanced T1-weighted MR images. We conclude that delayed contrast-enhanced T1-weighted MR imaging is reliable for the detection of residual cholesteatomas of the middle ear in patients who have undergone canal wall-up tympanoplasty. |
| تدمد: | 1432-1084 0938-7994 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2f75f4152ef65d8a2530fa63f42465eTest https://doi.org/10.1007/s00330-002-1423-1Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....a2f75f4152ef65d8a2530fa63f42465e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14321084 09387994 |
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