良性与恶性胆囊息肉样病变的计量鉴别

旨在建立胆囊息肉样病变（PLG）良恶性的鉴别方法．以提高PLG术前定性诊断的正确性。方法：对254例PLG的若干临床特征作分析．经数理统计处理．根据最大似然法的原理，建立PLG良恶性的计量鉴别法。结果：应用该法作回顾性与前瞻性验证，结果与病理检查的符合率分别达95．3％和97．1％，且全组无1例恶性PLG漏诊。结论：该法简便易行、快速可靠．可作为临床上PLG良恶性的一种鉴别方法。

Numerical Differentiation Between Benign and Malignant Polypoid Lesions of the Gallbladder

objective:To find out a method of differentiating the malignant polypoid lesions of the gallbladder(PLG) from the benign ones and to raise the diagnostic accuracy of PLG preoperatively. Method:The clinicalfeatures of 254 patients with PLG were reviewed and analysed by the mathematical statistics. A method of numerical differentiation between benign and malignant PLG has been established on the principle of the maximumlikelihood method. Results:An accuracy of differentiation between benign and malignant PLG in the retrospective and prospective tests by this method were 95. 3 % and 97. 1 % respectively as compared with pathological diagnosis. No malignant PLG was missed with this method. Conclusion:The method can be recommended to clinicians for diagnosing the nature of PLG with simplicity,rapidity and reliability.