Abstract #3479

Diffusion Tensor Imaging of the Roots of the Brachial Plexus: A Systematic Review and Meta-Analysis of Normative Values

Ryckie George Wade¹, Alexander Whittam², Irvin Teh¹, Gustav Andersson³, Fang-Cheng Yeh ⁴, Mikael Wiberg ³, and Grainne Bourke ¹

¹University of Leeds, Leeds, United Kingdom, ²Sheffield Teaching Hospitals, Sheffield, United Kingdom, ³Umeå University, Umeå, Sweden, ⁴University of Pittsburgh, Pittsburgh, PA, United States

In this systematic review and meta-analysis we summarise the normal diffusion tensor imaging (DTI) metrics for roots of the brachial plexus. We included 9 studies describing 316 adults (1:1 male:female) of mean age 35 years (SD 6). The normal fractional anisotropy was 0.36 (95% CI 0.34, 0.38; Figure 4). The normal mean diffusivity was 1.51 x10-3 mm2/s (95% CI 1.45, 1.56; Figure 5). DTI metrics varied according to experimental conditions and participant factors. Our summary estimates from different conditions which may be valuable to researchers and clinicians alike.

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