Table 1.

Method of image segmentation. ⁵

Segmentation method	Description
Manual	Radiologist manually traces the outline of the tumour but it is time‐consuming for large datasets
Semi‐automatic	Manual seed planting in the tumours’ centre followed by automatic border drawing by computer algorithms
Automatic	Uses highly trained computer algorithms to delineate the tumour and is more accurate for detecting the lesion versus background. Features are more reproducible with automatic methods