When lung nodules are detected in lung CT by computers

the vessel cross section and lung nodule have similar imaging characteristics in the two-dimensional CT image sequence

resulting in unable to detect problems precisely.We employed a new strategy for the lung nodules detection algorithm

which is based on the Gestalt psychology.This method can detect lung nodules indirectly by removing blood vessels.The experimental results show that

this algorithm can effectively reduce the influence of blood vessels on lung nodule detection

so as to improve the accuracy of detection of lung nodules.