Abstract #0751

Towards robust Diffusion Tensor Imaging of skeletal muscles via an automatic artifact removal tool.

Chiara Giraudo¹, Stano Motyka¹, Siegfried Trattnig¹, and Wolfgang Bogner¹

¹Department of Biomedical Imaging and Image-guided Therapy- MR Centre of Excellence, Medical University Vienna, Vienna, Austria

STEAM-DTI sequence recently provided excellent results for DTI analysis of muscle fibers (e.g., high signal-to-noise ratio, low apparent diffusion coefficient, high fractional anisotropy values) but demonstrated also to be affected by strong artifacts, which can be assumed to be due to involuntary muscle contractions. The hereby proposed automatic post-processing method, based on weighted mean of the averages for each DTI-direction and b-value, demonstrated to successfully detect and correct these artifacts, improving fiber tracking of the calf muscles.

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