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Abstract #0967

Denoising of DWI signal using deep learning 

Hu Cheng1, Jian Wang1,2, Shreyas Sanjeev Fadnavis3, Eleftherios Garyfallidis3, and Sharlene Newman1
1Psychological and Brain Sciences, Indiana University, Bloomington, IN, United States, 2School of Information Science and Engineering, Shandong Normal University, Jinan, China, 3Indiana University, Bloomington, IN, United States

We developed a simple deep learning method for DWI data denoising and tested it on correcting sum of square (SoS) noise. By acquiring two sets of diffusion images reconstructed with SoS and SENSE1 coil combination schemes on one subject as training data, the learned model can effectively denoise any SoS data acquired with the same DWI protocol. The denoised data produces similar results in diffusion tensor analysis and NODDI analysis as the SENSE1 data. This method also shed light on denoising techniques for diffusion imaging if a low-noise DWI dataset is available.

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