Nathan Scott White1, Josh Kuperman2, Beth Ripley2, Ajit Shankaranarayanan3, Eric Han3, Anders Dale2,4
1Dept. of Cognitive Science, University of California, San Diego, La Jolla, CA, United States; 2Dept. of Radiology, University of California, San Diego, La Jolla, CA, United States; 3Global Applied Science Lab, GE Healthcare, Menlo Park, CA, United States; 4Dept. of Neuroscience, University of California, San Diego, La Jolla, CA, United States
We present an extension to the real-time 3D "PROspective MOtion correction" (PROMO) framework for online correction of between-scan motion in 3D sequences through automatic slice plane positioning. Initial results demonstrate an intra-subject alignment precision of better than 1 mm/deg, despite initial position/landmark differences of over 13 mm. Given current scanner and computer hardware capabilities, the alignment procedure can be done in about a second or two, making it suitable to be integrated as part of a routine automatic pre-scan procedure.