6ELOUBEIDI M A,DESMOND R. MR prognostic factor for thesurvival of patients with esophageal carcinoma in the U. S : theimportance of tumor length and lymph node status[ J]. Canc-er,2002,95:1434-1443.
7WEAVER S R,BLACKSHAW G R,LEWIS W G,et al. Com-parison of special interest computed tomography,endosonogra-phy and histopathological stage of oesophageal cancer[ J]. ClinRadiol,2004,59(6) :499-504.
8MOSS A A,SCHNYDER P,THOENI R F,et al. Esophagealcarcinoma: pretherapy staging by computed tomography [ J ].Am J Roentgenol ,1981,136(6) : 1051-1056.
9HALVORSEN R A,HABIB KM, FOSTER WL,et al. Esopha-geal cancer staging by CT: long-term follow study [J]. Radiolo-gy, 1986,161 (1) : 147-151.
10DRUDI F M,TRIPPA F,CASCONE F,et al. Esophagogramand CT vs endoscopic and surgical specimens in the diagnosisof esophageal carcinoma [ J ]. Radiol Med (Torino) ,2002,103(4):344-352.