Fig. 4

Evaluation of micro-CT-scan accuracy. a Correlation between identified tumor number by micro-CT-scan (X axis) and at autopsy (Y axis) follows a linear regression model. The tumor number is accurately predicted only for a small number of tumors (i.e. <3). b Correlation between estimated tumor volume by micro-CT-scan (X axis) and at autopsy (Y axis) follows a linear regression model. The regression slope of 0.82 corresponded to a slight underestimation of micro-CT-scan volumes, probably due to physiological organ compression in the living animal