Diagnostic and Interventional Radiology
Head and Neck Imaging - Original Article

HASTE diffusion-weighted MRI for the reliable detection of cholesteatoma

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

Diagn Interv Radiol 2012; 18: 153-158
DOI: 10.4261/1305-3825.DIR.4246-11.3
Read: 907 Downloads: 523 Published: 03 September 2019

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.

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EISSN 1305-3612