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Figure 1. Routes schematically showing changes in diagnoses on admission, following CT and at final diagnosis. The upper diagram schematically represents scenarios where the post-CT diagnosis is of high confidence and is correct. The middle diagram schematically represents scenarios where the post-CT diagnosis is of high confidence and is incorrect, and the final diagnosis is more severe than the post-CT diagnosis. The lower diagram schematically represents scenarios where the post-CT diagnosis is of high confidence and is incorrect, and the final diagnosis is less severe than the post-CT diagnosis. Left-hand labels: Route labels. For consistency the same nomenclature is used in Figure 2. x (y, z), Confidence score assigned to route travelled by patient from admission to final diagnosis: x=best estimate (y=pessimistic, z=optimistic) score.
