Concordance between tumor-tissue analysis and cfDNA analysis (n = 85).

*: two out of these four patients presented unmatched mutations in tissue and plasma: they showed KRAS G12V mutations by plasma analysis and were determined either G12D or G13D by tumor tissue analysis.
cfDNA: cell-free DNA; WT: wild type; SE: sensitivity; SP: specificity; PPV: positive predictive value; NPV: negative predictive value.
Concordance between tumor-tissue analysis and cfDNA analysis (n = 85).

*：4例患者中，有2例的组织与血浆突变检测结果不匹配：其血浆分析检出KRAS G12V突变，而肿瘤组织检测结果为G12D或G13D突变。
cfDNA: 无细胞DNA（cell-free DNA）；WT: 野生型（wild type）；SE: 灵敏度（sensitivity）；SP: 特异度（specificity）；PPV: 阳性预测值（positive predictive value）；NPV: 阴性预测值（negative predictive value）。
肿瘤组织检测与cfDNA检测的一致性分析（n=85）。