Fig. 7From: “Real-world” radiomics from multi-vendor MRI: an original retrospective study on the prediction of nodal status and disease survival in breast cancer, as an exemplar to promote discussion of the wider issuesPrincipal component plot for the imaging feature data for all patients, with data points colour-coded by MR scanner type. Larger symbols represent group centroids. This partial separation via unsupervised classification methods demonstrates the significant extent to which data source acts as a confounding factor in radiomics studies of real-world dataBack to article page