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.