2KAUCZOR HU, WOLCK B, FISCCHER B, et al. Three-dimensional helical CT of the tracheobronchial tree: evaluation of imaging protocols and assessment of suspected stenoses with bronchoscopic correlation[J]. AJR, 1999, 167: 419-424.
3HIGGINS WI, RAMASWAMY K, SWIFT RD, et al. Virtual bronchoscopy for three dimensional pulmonary image assessment: state of the art and future needs[J]. Radio Graphics, 1998,18:761.
4FLEITER T, MERKLE EM, ASCHOFF A J, et al. comparison of real-time virtual and Fiberopic bronchoscopy in patients with bronchial carcinomal: opportunities and limitations[J]. AJR, 1997,169:1591-1595.
5LUCCICHENTI G, CADEMARTIRI F, FECCI L, et al. Non-neoplastic tracheal lesions: Comparison between virtual CT endoscopy and fiberoptic bronchoscopy[J]. Radiol Med, 2003, 106(3): 147-53.