Non-Cartesian radial sampling can preserve the spatial resolution without aliasing when under-sampling, but makes streak artifacts and internal structure identification difficult.Because C-UTE uses non-selective rectangular pulses to acquire projection data containing information about the entire object, setting the ROI smaller than the object further increases the under-sampling problem. the recently developed VS-UTE uses selective SINC pulses, and it's a method to minimize under-sampling problems. In this study, we demonstrate the ability of VS-UTE to maintain image quality when the number of projection views is under-sampled or when the imaging volume is chosen smaller than the imaging target.
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