Estimating in vivo Spatial Resolution of Magnetic Resonance Images Using Radiofrequency Tagging Pulses
Meyer C, Wang W
University of Virginia
This work investigates the feasibility of using the width of tags generated from RF pulses to estimate the true spatial resolution of in vivo MR images. The results show that, for visualization and quantification of the spatial resolution, a good estimation can be obtained when the width of the modulation function is narrower than the spatial resolution to be measured. As a rule of thumb, using tags whose modulation width is one half of the best possible spatial resolution can provide both an accurate quantitative and a quick visual estimation of the true spatial resolution.