Clinical evaluation of scout accelerated motion estimation and reduction (SAMER)
Azadeh Tabari1,2, Min Lang1,2, Daniel Polak3,4, Daniel Nicolas Splitthoff4, Bryan Clifford5, Wei-Ching Lo5, Lawrence L. Wald2,3,6, Stephen Cauley2,3, Otto Rapalino1,2, Pamela Schaefer1,2, John Conklin1,2,3, and Susie Y. Huang1,2,3,6
1Department of Radiology, Massachusetts General Hospital, Boston, MA, United States, 2Harvard Medical School, Boston, MA, United States, 3A. A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States, 4Siemens Healthcare GmbH, Erlangen, Germany, 5Siemens Medical Solutions, Malvern, PA, United States, 6Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, United States
Patient motion can degrade diagnostic image quality to the point that scans must be re-acquired, or patients called back. In this work, we performed a systematic clinical evaluation of SAMER, a highly efficient retrospective motion mitigation approach. 62 patients from emergency and inpatient care settings were scanned at 3T, and 14 cases were identified with a range of patient motion. Two neuro-radiologists performed blinded review of the images before and after motion correction, rating the images for motion severity. In 13 of the 14 cases, reduced motion severity and improved visualization of anatomy/pathology was obtained after SAMER motion mitigation.
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