Table 3.

The list of the data analysis methods in the relevant literature

Nodular signs	Data analysis	Literature
Nodule size or lesion diameter, lobulation and spiculation	Density histogram kurtosis and skewness	[26]
Nodule size or lesion diameter	Volume doubling time, mass doubling time	[27]
Nodule size or lesion diameter	Mass doubling time, Student’s t test	[28]
Nodule size or lesion diameter	Diffusion kurtosis imaging	[29]
Lobulation and spiculation	Differential geometry-based	[30]
Nodule size or lesion diameter, lobulation and spiculation	Support vector machine	[31]
Lobulation and spiculation	Weighted rule based	[32]