Table 2 Most important five features for each of the eight feature preselection methods.

From: Assessing preoperative risk of STR in skull meningiomas using MR radiomics and machine learning

Feature pre-selection method

Rank of feature importance

1

2

3

4

5

Stepwise logistic

Tumor shape:

irregular or regular

Tumor location:

convexity

Tumor location:

falx

orig.shape.Elongation

fd_vs_re: first

diagnose or relapse

Lasso

Tumor shape:

irregular or regular

Tumor location:

skull base

orig.shape.Elongation

fd_vs_re: first

diagnose or relapse

Tumor location:

posterior fossa

Ridge

Tumor shape:

irregular or regular

Tumor location:

convexity

Tumor location:

falx

Tumor location:

skull base

orig,shape,Elongation

GBM

Tumor shape:

irregular or regular

Tumor location:

skull base

Tumor location:

convexity

orig,glszm.SizeZone NonUniformity

orig,shape,Elongation

Random forest

Tumor location:

convexity

Tumor location:

skull base

orig.glszm.SizeZone NonUniformity

Shape:

irregular or regular

fd_vs_re: first

diagnose or relapse

Bagged trees

Tumor location:

skull base

Tumor location:

convexity

orig.shape.Sphericity

Shape:

irregular or regular

orig.shape.Elongation

LDA

Tumor shape:

irregular or regular

Tumor location:

convexity

Tumor location:

skull base

KPI

orig.glszm.Small AreaEmphasis

Naive Bayes

Tumor shape:

irregular or regular

Tumor location:

convexity

Tumor location:

skull base

KPI

orig.glszm.Small AreaEmphasis