Enlarged periventricular space and periventricular lesion extension on baseline brain MRI predicts poor neurological...

Area of Science:

• Neuroimaging
• Infectious Diseases
• Radiology

Background:

• Cryptococcus neoformans meningoencephalitis is a serious fungal infection affecting the central nervous system.
• Brain MRI findings may reveal the underlying pathophysiology, such as fungal accumulation and parenchymal invasion.
• Understanding these imaging markers is crucial for predicting disease progression and patient outcomes.

Purpose of the Study:

• To analyze serial brain MRI findings in patients with cryptococcus meningoencephalitis.
• To correlate MRI parameters with disease progression and clinical outcomes.
• To identify MRI-based predictors of poor neurological outcomes and mortality.

Main Methods:

• Serial brain MRI scans were analyzed in 76 patients with cryptococcus meningoencephalitis.
• Key MRI parameters included enlarged periventricular space (ePVS) score, periventricular lesion extension, cryptococcoma, and hydrocephalus.
• Clinical outcomes were assessed using the modified Rankin scale (mRS) at 2 weeks, 10 weeks, and 6 months.

Main Results:

• An ePVS score ≥ 5, periventricular lesion extension, and encephalitis features at baseline were associated with poor 6-month outcomes (Odds-ratios ranging from 44.487 to 94.173).
• The presence of two or more risk factors (encephalitis feature, ePVS score ≥ 5, periventricular lesion extension) strongly predicted poor 6-month outcomes (AUC: 0.978) and mortality (AUC: 0.836).
• Disease progression correlated with the development of cryptococcoma and hydrocephalus over time.

Conclusions:

• Brain MRI findings are valuable tools for predicting outcomes in cryptococcus meningoencephalitis.
• Specific MRI parameters at baseline can identify patients at high risk for poor neurological outcomes and mortality.
• Serial MRI monitoring can aid in assessing disease progression, including the development of complications like cryptococcoma and hydrocephalus.