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Abstract #4699

Volumetric real-time imaging with deep-learning reconstruction

Jiahao Lin1,2, Fadil Ali1, and Kyunghyun Sung1

1Radiology, University of California, Los Angeles, Los Angeles, CA, United States, 2Electrical and Computer Engineering, University of California, Los Angeles, Los Angeles, CA, United States

We propose a deep-learning reconstruction pipeline for 3D real-time imaging. We use a 3D golden-angle GRE sequence, and a deep-learning network based reconstruction. Gadgetron framework is used for real-time pipelining. Using 320 images in total, our network is trained with decaying data fidelity update, and deployed without it. Dilated convolution and skip concatenation improve the image quality. We achieved a Matrix size of 192x192x8 pixels, a temporal resolution of 889ms, a reconstruction time of 300-350ms, and our image quality is comparable to iGRASP.

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