Figure 4:

Representative transverse MR images of tibial midshaft from each of the three groups studied, with and without soft-tissue signal suppression. A, D, G, Gradient-echo (GRE) images. B, E, H, Radial ultrashort echo-time images. C, F, I, Radial ultrashort echo-time images with soft-tissue suppression (suppr.). Circular structure is the reference sample with T2 at approximately 300 μsec which, similar to bone, is visible only on radial MR images. Images obtained in 40-year-old healthy subject (top row) display noticeably thicker cortex than in 80-year-old subject (middle row) or in 52-year-old patient with ROD (bottom row). Images in patient with ROD display effect of increased cortical bone porosity.