Fig. 3

Linear regression analysis of estimated vs. measured prostate volumes using the bullet formula (a) with the full cohort. b Bland-Altman plot for outlier removal when using the bullet formula. c Linear regression analysis of estimated vs. measured prostate volumes using the bullet formula with the updated cohort, after outlier removal. In (a) and (c), solid line represents the linear regression with a constant term. Dashed line represents the linear regression passing through the intercept