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Bioactive glass granules for mastoid and epitympanic surgical obliteration: CT and MRI appearance.

Daniele BernardeschiBruno Law-YeFranck BielleBaptiste HochetOlivier SterkersDidier DormontNadya Pyatigorskaya
Published in: European radiology (2019)
• The appearance of mastoid and epitympanic obliteration by S53P4 bioactive glass (BG) granules on high-resolution computed tomography (HRCT) scans was homogeneous with an attenuation significantly higher than the attenuation of cholesteatoma and lower than mastoid bone attenuation. • The granules have a low-intensity signal on non-echo-planar diffusion-weighted sequences and on T2-weighted images and present contrast enhancement allowing the differential diagnosis with cholesteatoma and effective for the detection of other underlying temporal bone pathologies. • The volume and radiological appearance of the obliteration appear to be stable with time.
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