Integrated neuroimaging approach to the Chiari Malformation Spectrum from type 0 to 1.5: correlations between CSF flow impedance, tonsillar blackout sign, Obex position, and Clinico-anatomical features

Key Points

• Correlations between CSF flow impedance and clinico-anatomical features were identified, enhancing diagnostic understanding.
• Key findings include the tonsillar blackout sign and obex position's relevance to Chiari Malformation.
• Assessment using an integrated neuroimaging approach reveals complex interrelationships in Chiari Malformation types.
• Highlighting the need for improved diagnostic criteria and treatment strategies based on neuroimaging findings.