FIGURE 7.
Box plots of median T2* from progeny lesion, interface, parent bone and control bone regions of eleven stable and eleven unstable JOCD lesions. Data points for each group and region are shown next to the corresponding box plot. The mixed effects regression models, with age, sex and progeny volume as covariates and adjustment for within-subject variability found significantly lower T2* values in parent bone than in control bone in stable lesions (p = 0.009). The high variability of T2* values in the interface of unstable lesion, when compared to stable lesions, is likely due to the presence of fluid detected in 8 of 9 unstable lesions. In each box plot, the cross represents the mean T2* value and the central horizontal line the median T2* value of the evaluated region. The upper and lower whiskers extend to the maximum and minimum T2* values in the region, respectively. The upper and lower borders of the box represent the third quartile (i.e., 75th percentile) and the first quartile (i.e., 25th percentile) of the T2* data within the region, respectively [Color figure can be viewed at wileyonlinelibrary.com]