EGFR and non-small cell lung carcinoma: Among those parameters, INW(VP) had the highest diagnostic specificity (95.65%) for identifying EGFR mutation status of patients with NSCLC, followed by NIC(VP) and ED(VP), both with a specificity of 86.96%, and the threshold values were 1.72 mg/mL, 0.30, and 41.95 HU, respectively.