3ROYSTER A P, FENLON H M, CLARKE P D, et al. CT colonoscopy of colonoscopic correlation[J]. AJR, 1997,169:1237- 1242.
4MACARI M, MILANOA, LAVELLE M, et al. Comparison of time efficient CT colonography with tow and three dimensional colonic for detecting colorectal polyps[J]. AJR, 2000, 174: 1545- 1579.
5VININGDT, CELFAND D W BECHHOLDRE, BECHHOL- DRE,et al. Technical feasibility of colon imaging with helical CT and wirtual reality(adstraet) [J]. AJR, 1994,162(suppl) :104.
