Rapid Artifact Detection and Correction for Real-Time fMRI

A new approach to measure single-event related brain activity using real-time fMRI: Feasibility of sensory, motor, and higher cognitive tasks

“…Real-time fMRI is currently being developed by an increasing number of research groups [Cox et al, 1995;Goddard et al, 1997;Cohen et al, 1998;Gering and Weber, 1998;Lee et al, 1998;Frank et al, 1999;Voyvodic, 1999;Yoo et al, 1999;Gembris et al, 2000], and major MR manufacturers have started the development of their own real-time analysis tools. However, in contrast to our methodology, the data acquisition and analysis techniques that were used in previous studies are not suitable for real-time monitoring of dynamic changes in brain activity during the ongoing scan.…”

“…These advances stimulated the development of "real-time fMRI" [Cox et al, 1995;Goddard et al, 1997;Lee et al, 1998;Gering and Weber 1998;Cohen et al, 1998;Frank et al, 1999;Voyvodic 1999;Yoo et al, 1999;Gembris et al, 2000], which is characterized by steady state data acquisition, image reconstruction, motion correction, and statistical image analysis during the ongoing scan, preferably with a time delay of less than a single TR cycle. With realtime fMRI the delay between task initiation and clear display of involved cortical areas is no longer determined by computation time.…”