The λHU values of the EGFR mutated tumours were significantly higher than those of the EGFR wild-type tumours in the VP (2.75 ± 1.06 versus 2.13 ± 0.56, P = 0.006), but the 70 keV CT values in the AP and VP and the λHU values in the AP demonstrated no statistically significant difference between the EGFR wild-type and the EGFR mutated tumours (P > 0.05) (Table 4). Here, EGFR is linked to neoplasm.