ISSN 1308-7649 | E-ISSN 2148-3817
Original Article
Does Diffusion-Weighted MR Imaging Change the Follow-Up Strategy in Cases with Residual Cholesteatoma?
1 Department of Otolaryngology, Ministry of Health, Rize Çayeli State Hospital, Rize, Turkey  
2 Department of Otolaryngology, Ankara Children's Hematology and Oncology Training and Research Hospital, Ankara, Turkey  
3 Department of Radiology, Ministry of Health, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey  
4 Department of Otolaryngology, Ministry of Health, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey  
5 Department of Otolaryngology, Yıldırım Beyazıt University Medical School, Ankara, Turkey  
6 Department of Otolaryngology, Karabük University Medical School, Karabuk, Turkey  
J Int Adv Otol 2015; 11: 58-62
DOI: 10.5152/iao.2014.216
Key Words: Cholesteatoma, diffusion-weighted imaging, second look surgery
Abstract

OBJECTIVE: To analyze the effectiveness of diffusion-weighted magnetic resonance imaging (DW-MRI) in the evaluation of recurrent cholesteatomas.

 

MATERIALS and METHODS: Twenty-three patients undergoing second-look surgery were included in our study. There were 14 men and 9 women with ages ranging from 10 to 50. All patients underwent DW-MRI prior to second-look surgery. All magnetic resonance imaging (MRI) examinations were performed with a 1.5-T MRI unit using a standard 8-channel neurovascular coil. DW-MRI and apparent diffusion coefficient maps were included in the examination. Cholesteatoma was diagnosed on the DW-MRI as a marked hyperintense signal in comparison with brain tissue. All cases were classified as positive or negative.

 

RESULTS: The sensitivity and specificity of DW-MRI were 86% and 87%, respectively. The positive predictive value of DW-MRI was 92%, while the negative predictive value was 77%.

 

CONCLUSION: The DW-MRI technique is an important and effective technique in the evaluation of residual cholesteatoma. It can be an alternative method to second-look surgery, which can spare patients repeat operations.

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