Subdural empyema MRI
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American Roentgen Ray Society Images of Subdural empyema MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: João André Alves Silva, M.D. [2]; Anthony Gallo, B.S. [3]
Overview
MRI in the optimal imaging study in the diagnosis of subdural empyema. Findings on MRI suggestive of subdural empyema are similar to those on CT scan, and include a crescentic shape, though collection pockets may appear bi-convex. A surrounding membrane that enhances intensely and uniformly following contrast administration is typically identified and may also demonstrate restricted diffusion.
MRI
MRI with gadolinium enhancement is considered the optimal imaging study for intracranial and spinal subdural empyema. MRI clearly t reveals clearly the pus collections, as well as signs of meningeal infections. The characteristic image of a subdural empyema on an MRI is a fluid collection surrounded by a contrast-enhancing rim. It is used in emergent situations, with high level of suspicion, with the possibility of diagnosing subdural empyema at a time when symptoms are still headache and fever, with absent focal neurologic signs. [1] The diffusion-weighted imaging method increases the diagnosis preciseness and offers the ability of monitoring antibiotic therapy. [2] The MRI should be careful evaluated for the presence of epidural abscess, meningitis, brain abscess and cerebral edema, with the possibility of showing sinusitis, otitis or mastoiditis. [1] MRI imaging studies demonstrate the subdural empyema as a convexity or interhemispheric collection, with a low signal on T1 and a high signal on T2 weighted images.[3]
References
- ↑ 1.0 1.1 Greenlee JE (2003). "Subdural Empyema". Curr Treat Options Neurol. 5 (1): 13–22. PMID 12521560.
- ↑ Hendaus, Mohammed A. (2013). "Subdural Empyema in Children". Global Journal of Health Science. 5 (6). doi:10.5539/gjhs.v5n6p54. ISSN 1916-9744.
- ↑ Agrawal, Amit; Timothy, Jake; Pandit, Lekha; Shetty, Lathika; Shetty, J.P. (2007). "A Review of Subdural Empyema and Its Management". Infectious Diseases in Clinical Practice. 15 (3): 149–153. doi:10.1097/01.idc.0000269905.67284.c7. ISSN 1056-9103.