Expanded Design of Web-Distributed Software fMRI Phantoms
Morgan V, Li Y, Dawant B, Pickens D, Fitzpatrick J, Xu N
We have previously described a set of software phantoms designed to simulate real fMRI studies, but with known amounts of motion, noise, and activation. These phantoms can be used to evaluate fMRI image processing software and are precomputed for download from our web site. In this abstract we describe an expanded design for our phantoms to simulate slice timing artifacts, varied hemodynamic response functions, baseline drift, spin history effects, and motion-induced susceptibility artifacts. These phantoms will be distributed by an extended, interactive web site so that users can select the characteristics of phantoms to meet their needs.