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为发现胃肠道癌肿的肝转移,已引用了许多试验本文对这些试验在临床上无明显播散征象的患者中的价值进行评价。作者收集1973年以后发表的英、法、德文资料16篇,患者的肝脏情况均在试验后一月内经手术证实。计算检验方法阳性预测值和假阴性(FN)的百分率以评价诊断价值。计算阴性预测值和假阳性(FP)的百分率,以评价检验方法的筛选价值。
In order to find liver metastases of gastrointestinal cancers, many trials have been cited to evaluate the value of these trials in patients with no clinically significant signs of dissemination. The authors collected 16 English, French, and German data published since 1973. The patient’s liver condition was confirmed by surgery within one month after the trial. Calculate the positive predictive value of the test method and the percentage of false negatives (FN) to evaluate the diagnostic value. The negative predictive value and the percentage of false positives (FP) were calculated to evaluate the screening value of the test method.