Fig. 3From: Visual and quantitative assessment of hip implant-related metal artifacts at low field MRI: a phantom study comparing a 0.55-T system with 1.5-T and 3-T systemsScheme of the fractions of voxel within a 10%, 25%, and 50% limit above or below the mean signal intensity (a). Corresponding signal curve along the x-axis at the middle of the shaft with visualization of the fractions p10, p25, and p50 (b). See text (in the “Methods” section) for explanation of p10, p25, and p50Back to article page