Bacterial meningitis MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aysha Anwar, M.B.B.S[2]

Overview

MRI scan is more sensitive than CT scan in identifying the complications of bacterial meningitis which include subdural/epidural empyema and pyogenic abscess. Two modalities of MRI which may be more specific for identifying complications may include FLAIR and DWI imaging.

MRI scan

MRI is superior to CT scan to detect the complications of bacterial meningitis such as subdural or epidural empyema and vasculitic complications. FLAIR(fluid attenuated inversion recovery) weighted images may be preffered modality for complications such as subdural or epidural empyema. However, early parenchymal complications and differentiating pyogenic abscess from other ring enhancing lesions caused by other etiologies may be better determined by DWI(diffusion weighted imaging).[1][2][3][4]

References

  1. Kastrup O, Wanke I, Maschke M (2005). "Neuroimaging of infections". NeuroRx. 2 (2): 324–32. doi:10.1602/neurorx.2.2.324. PMC 1064994. PMID 15897953.
  2. Fukui MB, Williams RL, Mudigonda S (2001). "CT and MR imaging features of pyogenic ventriculitis". AJNR Am J Neuroradiol. 22 (8): 1510–6. PMID 11559498.
  3. Tsuchiya K, Osawa A, Katase S, Fujikawa A, Hachiya J, Aoki S (2003). "Diffusion-weighted MRI of subdural and epidural empyemas". Neuroradiology. 45 (4): 220–3. doi:10.1007/s00234-003-0949-5. PMID 12687304.
  4. Hughes DC, Raghavan A, Mordekar SR, Griffiths PD, Connolly DJ (2010). "Role of imaging in the diagnosis of acute bacterial meningitis and its complications". Postgrad Med J. 86 (1018): 478–85. doi:10.1136/pgmj.2010.097022. PMID 20709770.

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