Quality control for systematic improvements in spatial resolution up to the microscopy range becomes increasingly relevant not only for preclinical imaging but also for High Field MR human scanners. The design, manufacturing technology, a prototype phantom and an exemplary evaluation for qualitative and quantitative measurement of the spatial resolution of MR-scanners claimed to offer spatial resolutions better than 100µm is presented. The spatial resolution for 2D-FT anisotropic imaging can be checked qualitatively and quantitatively by interpolation of the Modulation-Transfer-Function in two different spatial encoding directions at the same time with slice-thickness below 120µm up to 64 line-pairs/mm (pixel-size: 8µm).
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