E-ISSN: 1305-3612
    HASTE diffusion-weighted MRI for the reliable detection of cholesteatoma
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    Head and Neck Imaging - Original Article
    VOLUME: 18 ISSUE: 2
    P: 153-158
    March 2012

    HASTE diffusion-weighted MRI for the reliable detection of cholesteatoma

    Diagn Interv Radiol 2012;18(2):153-158
    DOI: 10.4261/1305-3825.DIR.4246-11.3
    A. Turan Ilıca 1
    Yusuf Hıdır 2
    Nail Bulakbaşı 3
    Bülent Satar 2
    İnanç Güvenç 1
    Hasan Hüseyin Arslan 4
    Nurcan İmre 5
    1. Departments of Radiology, Gülhane Military Medical School, Ankara, Turkey
    2. Departments of Head and Neck Surgery, Gülhane Military Medical School, Ankara, Turkey
    3. Department of Radiology, Near East University School of Medicine, Nicosia, Northern Cyprus
    4. Departments of Head and Neck Surgery, Gülhane Military Medical School, Ankara, Turkey
    5. Departments of Anatomy, Gülhane Military Medical School, Ankara, Turkey
    No information available.
    No information available
    Received Date: 24.01.2011
    Accepted Date: 23.06.2011
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    ABSTRACT

    PURPOSE

    To assess the detection efficiency of Half-Fourier acquisition single-shot turbo spin-echo (HASTE) diffusion-weighted magnetic resonance imaging (MRI) for cholesteatoma.

    MATERIALS AND METHODS

    A total of 21 patients with suspected primary (n=16) or recurrent cholesteatoma (n=5) underwent MRI in a 1.5 Tesla scanner using an adapted protocol for cholesteatoma detection that included a coronal HASTE diffusion-weighted MRI sequence. The cholesteatoma diagnosis was based on evidence of a hyperintense lesion at b-1000 on diffusion-weighted images. The imaging findings were correlated with findings from surgery or clinical evaluations in all patients.

    RESULTS

    HASTE diffusion-weighted MRI successfully detected 11 primary and 5 recurrent lesions out of 17 cholesteatomas (sensitivity, 94.1%). One primary cholesteatoma with a diameter of 4–5 mm was missed. MRI of patients without cholesteatoma were correctly interpreted as negative for cholesteatoma (specificity, 100%). The positive and negative predictive values for the HASTE diffusion-weighted MRI in detecting cholesteatoma were 100% and 80%, respectively.

    CONCLUSION

    HASTE diffusion-weighted MRI offers great promise for cholesteatoma screening. The addition of this sequence to the posterior fossa MRI protocol may preclude unnecessary cholesteatoma surgery.

    Keywords: cholesteatoma, diffusion-weighted magnetic resonance imaging, otitis

    References

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