- The Brush Sign Is Associated with a More Severe Oxygen Metabolic Impairment of the Ischemic Penumbra: An MRI-Based Study in Patients with Acute Stroke
The objectives of this study were to investigate the oxygen metabolic abnormalities in patients with acute ischemic stroke treated with thrombectomy who exhibited the brush sign on admission MRI and to examine its prognostic implications at follow-up. It was found that the brush sign on admission MRI was associated with a more severe reduction in CMRO2 within the ischemic penumbra and poorer clinical outcomes at 3 months in patients with AIS treated with mechanical thrombectomy.
- Distinguishing Intracranial Solitary Fibrous Tumors from Meningiomas: The Diagnostic Value of T1-Weighted MRI Signal Intensity and ADC Values
The authors compared ADC and conventional MRI features (eg, precontrast T1 signal intensity) of intracranial SFTs and meningiomas. T1-weighted hyperintensity compared with the cortex was significantly more frequent in SFTs compared with meningiomas. Both normalized T1-weighted imaging and ADC values were higher in SFTs. A significant inverse correlation between T1-weighted and ADC values was observed only in SFTs.
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