Figure 1 | Scientific Reports

Figure 1

From: Assessing robustness of carotid artery CT angiography radiomics in the identification of culprit lesions in cerebrovascular events

Figure 1

Violin plots of image segmentation agreement as determined by the Dice coefficient with the original ROI. Intra-observer variability was determined by manual segmentation of the ROIs by the same observer (EPVL) at two separate time points for 8 carotid arteries. Inter-observer variability was determined by manual ROI segmentation by two independent observers (EPVL and CW), performed on 8 carotid arteries. The ROIs drawn by the primary observer (EPVL) on 82 carotid arteries were compared with those generated following dilation and erosion morphological operations in single-slice analysis to determine the Dice coefficient distribution of systematic ROI perturbations. The violin plots each contain a black box-plot of the Dice coefficients, with the white dot representing the median Dice coefficient. Whereas the box-plots correspond to the actual data points of the Dice coefficients, the coloured shapes provide a visualisation of the underlying Dice coefficient distributions via kernel density estimations.

Back to article page