
FIG 1. AC, At
= 3 ms, the bone marrow contrast has negative values (mean, -0.16; SD, 0.45) for osteoporotic fractures (group 1) and positive values (mean, 2.19; SD, 1.35) for tumorous fractures (group 2) (A). This represents the hypointense signal in benign versus hyperintense signal in malignant fractures and is statistically different at P < .001. However, there is a small overlap between the maximum values of osteoporotic fractures and the minimum values of malignant fractures at
= 3 ms. This overlap is reduced with increasing diffusion weighting at
= 6.0 and 9.0 ms, owing to a signal reduction in benign osteoporotic fractures (B and C).