Ten fingings of SPN on HRCT(including calcification,fat,vacuole sign,cavication,ari bronchogram,lobutated,spicule,vascular convergence,pleural indentation and salellite focus)were selected as the parameteres of ANN analysis.

• 选取 10种SPN在HRCT上的征象 (钙化、脂肪、空泡征、空洞、细支气管气象、分叶征、毛刺征、血管集束征、胸膜凹陷征及卫星灶 )作为ANN分析参数。