Fig. 5From: Cardiothoracic ratio measurement using artificial intelligence: observer and method validation studiesLinear correlation (a, c) and Bland–Altman (b, d) plots of Manual and AI-only method on all (the first row) and cardiomegaly (the last row) data. Note: Even these comparisons had high variation on both types of data, their R-squared were interestingly different as in good (0.7945) and poor (0.3384) in all and cardiomegaly data, respectivelyBack to article page