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- Title
Fisher 判别在肺磨玻璃结节CT鉴别诊断中的应用.
- Authors
郭圆圆; 宁卫卫; 丁玲; 林秋琪; 朱晔涵
- Abstract
Objective: To assess the differential diagnostic value of fisher discriminant in analyzing ground-glass opacity(GGO) by spiral CT scanning. Methods: A retrospective study was conducted in 80 cases of GGO, got definite pathological diagnosis, from August 2009 to August 2015 in the First Affiliated Hospital of Soochow University. The CT morphological features were evaluated by x2-test and fisher discriminant was applied to the parameters with significant difference. Jackknife was used for estimating the rate of miscarriage justice. Results: 80 cases with GGO were divided into 2 groups: benign group (n=29), malignant (n=51). Single factor analysis showed that there were significant differences in nodules form, lobulated sign, spicule sign, pleural indentation sign, bronchus encapsulated air sign, nodule interface between benign and malignant lesions. The formula of fisher discriminant was Z= -1.864X1+1.434X2+2.091X3+ 1.154X4+0.492X5+0.996X6+0.677X7-1.008, the rate of miscarriage of justice was 13.7 %, the sensitivity and specificity were 91.7 % and 78 % respectively, the accuracy was 86.3 %. Conclusions: Fisher discriminant mode could effectively make differential diagnosis of GGO, which had high sensitivity, specificity, accuracy and value in clinical experience.
- Publication
Progress in Modern Biomedicine, 2016, Vol 16, Issue 15, p2879
- ISSN
1673-6273
- Publication type
Article
- DOI
10.13241/j.cnki.pmb.2016.15.019