fig2

Figure 2. Comparison of tumour size on CT and MRI. Student’s t-test was conducted to compare measurements [t(310) = -0.620, P = 0.536] (A); comparison of tumour sizes measured by radiology and pathology. Student’s t-test was again conducted to compare the 2 paired samples for CT [t(117) = 2.494, P = 0.014] and MRI [t(111) = 1.689, P = 0.094] (B); the effect of magnification on inter-user variability of tumour measurements. The graph shows the percentage standard deviation of tumour measurements between 3 independent raters at 5 different magnifications. There was no statistically significant difference (P > 0.05) (C); CT: computer tomography; MRI: magnetic resonance imaging