Research Article

RETRACTED: Artificial Intelligence Algorithm-Based Feature Extraction of Computed Tomography Images and Analysis of Benign and Malignant Pulmonary Nodules

Table 2

Comparison of benign and malignant pulmonary nodules.

ManifestationsBenign group (107)Malignant group (223)χ2
ExistProportion (%)ExistProportion (%)

Spiculation sign98.4116373.0917.325
Lobulation sign0015569.9636.484
Vacuole sign43.7413259.1919.502
Air bronchus sign1411.213113.900.1240.089
Vessel convergence sign54.6716774.8939.790
Pleural traction sign003917.494.6390.041