Konkle, J.Goodwill, P.Sarıtaş, Emine ÜlküZheng, B.Lu, K.Conolly, S.2020-04-102020-04-1020131862-278Xhttp://hdl.handle.net/11693/53583We experimentally demonstrate a 20-fold improvement in acquisition time in projection reconstruction (PR) magnetic particle imaging (MPI) relative to the state-of-the-art PR MPI imaging results. We achieve this acceleration in our imaging system by introducing an additional Helmholtz electromagnet pair, which creates a slow shift (focus) field. Because of magnetostimulation limits in humans, we show that scan time with three-dimensional (3D) PR MPI is theoretically within the same order of magnitude as 3D MPI with a field free point; however, PR MPI has an order of magnitude signal-to-noise ratio gain.EnglishArticle10.1515/bmt-2012-0062