Motion-corrected radial head MRI without any navigator, data redundancy or external tracking
Cihat Eldeniz1, Paul K. Commean1, Parna E. Boroojeni1, Jamal Derakhshan1, Yan Yan2, Udayabhanu Jammalamadaka3, Manu S. Goyal1, Gary Skolnick4, Kamlesh B. Patel4, and Hongyu An5
1Mallinckrodt Institute of Radiology, Washington University in St. Louis, SAINT LOUIS, MO, United States, 2Public Health Sciences, Washington University in St. Louis, SAINT LOUIS, MO, United States, 3Office of Research, Rice University, Houston, TX, United States, 4Division of Plastic and Reconstructive Surgery, Washington University in St. Louis, SAINT LOUIS, MO, United States, 5Mallinckrodt Institute of Radiology, Washington University in St. Louis, St. Louis, MO, United States
Patient motion is a common problem in MRI. Both prospective and retrospective schemes can be inefficient if they use navigators. Therefore, self-navigation without any data redundancy is preferable. In this study, we propose a simple and robust motion detection scheme that is free from stringent assumptions. This is especially important while imaging the head because the motion patterns are unpredictable. The corrected and uncorrected images were reviewed by two neuroradiologists in terms of osseous distinction (in reference to CT), sharpness and artifact-freeness. The method is able to increase osseous distinction and sharpness without increasing artifacts. This offers substantial clinical utility.
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