Ultrasound imaging-guided protocol for monitoring tumor growth in orthotopic rat model of hepatocellular carcinoma

Figure 4 Evaluation of expert non-expert variability in tumor volume measurement by ultrasound imaging. A-C: A linear correlation plot showing the association of tumour volume measurement by observer 1, 2 and 3 respectively with expert measurement. Dotted line indicates 95% confidence bands and Pearson correlation coefficient is mentioned in each plot (P < 0.001, n = 25 for each plot); D-F: Bland-Altman plots showing the deviation in observer measurements from expert measurements. Upper and lower dotted lines represent the limits of agreement.