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European Radiology Experimental
Fig. 2 | European Radiology Experimental

Fig. 2

From: Precision of manual two-dimensional segmentations of lung and liver metastases and its impact on tumour response assessment using RECIST 1.1

Fig. 2

Regression models of the standard deviation according to maximum diameter (in mm) or area (in cm2). a Mean standard deviation according to the mean maximum diameter of the seven segmentations performed in the lung. A relative dispersion of the mean standard deviation was observed for the maximum diameter but remained below 2.5 mm whatever the size of the segmented tumour. The relative uncertainty decreased with the size. b Mean standard deviation according to mean area for each tumour in the lung. c Mean standard deviation according to mean maximum diameter for each segmented tumour in the liver (n = 6). The relative uncertainty increased with the size of the lesion. d Mean standard deviation according to mean area for each tumour in the liver

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