Aiming at the segmentation of pulmonary nodules on multi slice CT images

the paper put forwards an interactive manual method for nodule segmentation.It replaces Laplacian in Live Wire algor ithm with Canny operator

which addresses the problem of false and disconnected edge when using Laplacian for edge detection.Experiment shows that this method enables doctors a faster segmentation of nodules in ROI

which is prerequisite to quantitative analysis and 3D reconstruction.From the result of segmentation and 3D visualization

segmentation by using this method has turning out to be ideal.