CD274 and non-small cell lung carcinoma: The ETM/Kep (Q10), ETM/Ktrans (Q25 and Q50), and ECM/Ve (Q75 and Q90) parameters were used to stratify PD‐L1 thresholds for 50% of NSCLC, whereas the ECM/Ve (Q75) parameter was able to discriminate between those with PD‐L1 levels of 1%–49% and those with PD‐L1 levels of ≥ 50%.