Retrospective motion compensation for spiral brain imaging with a deep convolutional neural network
Quan Dou1, Zhixing Wang1, Xue Feng1, John P. Mugler2, and Craig H. Meyer1
1Biomedical Engineering, University of Virginia, Charlottesville, VA, United States, 2Radiology & Medical Imaging, University of Virginia, Charlottesville, VA, United States
A deep convolutional neural network was implemented to retrospectively compensate for motion in spiral imaging. The network was trained on images with simulated motion artifacts and tested on both simulated and in vivo data. The image quality was improved after the motion correction.
Figure 1. Motion simulation strategy for spiral
sampling (A), and network architecture adopted in this study (B).
Figure 2. Representative motion compensation
results on simulated data, from subjects 1 (A), 2 (B), and 3 (C).