Meeting Banner
Abstract #2058

Assessment of prospective motion correction using optical tracking system for reduction of stimulus-correlated false positive activations in high spatial resolution functional magnetic resonance imaging

Ikuhiro Kida 1,2 , Takashi Ueguchi 1,2 , Yuichiro Matsuoka 1,2 , and Maxim Zaitsev 3

1 Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita, Osaka, Japan, 2 Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan, 3 University Medical Centre Freiburg, Freiburg, Germany

Head motion may have a negative impact on fMRI results with high spatial resolution at ultra-high magnetic field. Prospective motion correction (PMC) using external position information based on optical tracking is one of the solutions for mitigating motion-related false positive activation (FPA). We evaluated the PMC with 1 mm isotropic resolution at 7T. A great improvement of FPA for phantom study suggest that PMC using optical tracking system promises an improvement of motion-induced artifact at 1 mm isotropic resolution. In a human study only a slight improvement was observed, which suggests improvements are needed for both the present study design and possibly the PMC set-up.

This abstract and the presentation materials are available to members only; a login is required.

Join Here