The correct rate of ANN for the diagnosis of the 3 kinds SPNs (each having 25 cases) is 80%, 82% and 84% respectively, with an average accurate diagnosis rate being 82%.

• ANN对三类SPN(各25例)的诊断正确率分别为80%25、80%25、84%25，平均诊断正确率为81.；3%25。