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Figure 4 Scatter Plot and Bland-Altman Analysis of QCT Versus QCA

In the left panel, QCT is plotted versus QCA. A significant correlation is seen between both anatomical techniques (r = 0.53). In the right panel, Bland-Altman analysis showed a bias of +2% with 95% limit of agreement ranging from –21% to 25%. Abbreviations as in Figure 3.