Balancing Accuracy and Precision: Optimal b-values for Diffusion Tensor Imaging Along the Perivascular Space

Key Points

• The aim is to identify the most suitable b-values for diffusion tensor imaging in perivascular spaces.
• Conducted simulations to evaluate b-values
• Performed in vivo assessments of diffusion
• Compared commonly used b-value of 1000 s/mm² with intermediate values
• Found that a b-value of 1000 s/mm² is not optimal
• Identified a b-value of 700 s/mm² as more suitable
• Recommended further optimization of acquisition parameters