Abstract #1802

Assessment of Inherent Variation in Diffusion Tensor Measurements with Multi-band EPI in Rhesus Monkeys

Yuguang Meng¹ and Xiaodong Zhang^1,2

¹Yerkes Imaging Center, Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States, ²Division of Neuropharmacology and Neurologic Diseases, Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States

Multi-band EPI technique is becoming prevalent in diffusion MRI because it can reduce the scanning time substantially by simultaneously exciting multiple slices and then decoding signal by parallel MR imaging reconstruction algorithms. However, little is known about its influence on the inherent variations of diffusion measurements with or without multi-band parallel acquisitions. This study compared the variations of the in-vivo diffusion MRI measurement results by multi-band and conventional parallel acquisitions. The results showed that the inherent variations of diffusion MRI measurements can be reduced by multi-band parallel acquisition compared to conventional parallel MRI acquisition.

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