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Motion Robust High-Resolution Pelvic Imaging using PROPELLER and Deep Learning Reconstruction
Ali Pirasteh1, Lloyd Estkowski2, Daniel Litwiller3, Ersin Bayram4, and Xinzeng Wang5
1Department of Radiology, UW Madison, Madison, WI, United States, 2Global MR Applications & Workflow, GE Healthcare, Madison, WI, United States, 3Global MR Applications & Workflow, GE Healthcare, Denver, CO, United States, 4Global MR Applications & Workflow, GE Healthcare, Houston, TX, United States, 5GE Healthcare, Houston, TX, United States
  PROPELLER T2-weighted images of pelvis with DL reconstruction resulted in improved image quality, including improved SNR, in-plane resolution and robustness to motion.
Figure 4: FSE and PROPELLER images reconstructed using deep-learning based reconstruction methods. Deep-learning based reconstruction method improved the SNR and in-plane resolution of FSE images, but the motion artifacts were not removed. Due to the robustness to motion and deep-learning based reconstruction method, the PROPELLER images showed better SNR, in-plane resolution and less motion artifacts.
Figure 5: High resolution rectal FSE and PROPELLER images of a patient. Deep learning reconstruction method improved the SNR and in-plane resolution. Due to the robustness to motion, PROPELLER further improved the image sharpness.