Role of diffusion-weighted MRI in the detection of cholesteatoma after tympanoplasty
Joint Authors
Fathi, Ahmad
Khidr, Sharif Abd al-Fattah
Adli, Ahmad Muhammad
al-Fiqqi, Lubna M.
Ubayd, Amjad
Source
Egyptian Journal of Ear, Nose, Throat and Allied Sciences
Issue
Vol. 12, Issue 3 (30 Nov. 2011), pp.141-148, 8 p.
Publisher
Egyptian Society of Ear Nose Throat and Allied Science
Publication Date
2011-11-30
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Topics
Abstract EN
Introduction: Conventional cross sectional imaging modalities are unable to differentiate cholesteatoma from post surgery alterations in a surgical cavity.
Objective: The aim of this prospective study was to determine the value of diffusion-weighted (DW) MRI for the detection of cholesteatoma in patients who have undergone middle ear surgery.
Study design: A prospective comparative study.
Main outcome measure: The presence of cholesteatoma at revision surgery and matched with the preoperative findings of MRI.
Subjects and methods: Twenty-one ears previously operated for cholesteatoma and scheduled for surgery were referred for MRI using a DW fast spin-echo sequence, T2-weighted spin-echo sequence and T1-weighted before and after contrast injection as well as delayed contrast-enhanced images.
Imaging findings were correlated with intraoperative findings.
Results: DW MRI combined with conventional MRI accurately depicted 11 of 13 cholesteatoma patients (sensitivity = 84.6%).
The two lesions that were missed were 2 mm in size.
All the MRI of patients without cholesteatoma were correctly interpreted as showing negative findings for cholesteatoma (specificity = 100%).
The positive predictive value and negative predictive value were 100% and 80%, respectively.
Conclusion: DW MRI combined with conventional MRI show high signal intensity in the presence of residual or recurrent cholesteatoma and could correctly detect its presence in the surgical cavity.
However, small lesions can be missed.
American Psychological Association (APA)
Khidr, Sharif Abd al-Fattah& Adli, Ahmad Muhammad& Fathi, Ahmad& al-Fiqqi, Lubna M.& Ubayd, Amjad. 2011. Role of diffusion-weighted MRI in the detection of cholesteatoma after tympanoplasty. Egyptian Journal of Ear, Nose, Throat and Allied Sciences،Vol. 12, no. 3, pp.141-148.
https://search.emarefa.net/detail/BIM-374889
Modern Language Association (MLA)
Khidr, Sharif Abd al-Fattah…[et al.]. Role of diffusion-weighted MRI in the detection of cholesteatoma after tympanoplasty. Egyptian Journal of Ear, Nose, Throat and Allied Sciences Vol. 12, no. 3 (Nov. 2011), pp.141-148.
https://search.emarefa.net/detail/BIM-374889
American Medical Association (AMA)
Khidr, Sharif Abd al-Fattah& Adli, Ahmad Muhammad& Fathi, Ahmad& al-Fiqqi, Lubna M.& Ubayd, Amjad. Role of diffusion-weighted MRI in the detection of cholesteatoma after tympanoplasty. Egyptian Journal of Ear, Nose, Throat and Allied Sciences. 2011. Vol. 12, no. 3, pp.141-148.
https://search.emarefa.net/detail/BIM-374889
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 148
Record ID
BIM-374889