Mazyar E. Ahmadi1, Timothy T. Brown2, Joshua M. Kuperman1, J C. Roddey2, Nathen S. White3, Ajit Shankaranarayanan4, Eric Han4, Dan Rettmann4, Anders M. Dale1,2
1Radiology, UCSD, San Diego, CA, USA; 2Neurosciences, UCSD, San Diego, CA, USA; 3Cognitive Sciences, UCSD, San Diego, CA, USA; 4Applied Science Laboratory, GE Healthcare, San Diego, CA, USA
Artifacts caused by patient motion during scanning remains a serious problem in most MRI applications, with unsedated pediatric MR imaging being a notable example. Multiple approaches have been investigated in the past two decades mainly focusing on 2D motion. However these methods are limited by subject through-plane motion. The 3D PROspective MOtion correction system (PROMO) attempts to address the issue by correcting for both in-plane and through-plane motion. In this study, we quantified the improvements in the image quality in patients with varying amount of in-scanner motion during PROMO on and off scans.