CT compared with postoperational pathology of tracheal, bronchial and carinate early invasion of esophageal carcinoma / 肿瘤研究与临床

ABSTRACT

Objective To elevate accuracy of CT T4 staging diagnosis of esophageal carcinoma, we analysed relativity between CT diagnosis and postoperational pathology for the tracheal, bronchial, carinate early invasion. Methods From 1996 to 2002, 49 patients with cervical and middle-upper segment esophageal carcinoma proved by esophagectomy and pathology, whom were taken cervical or thoracic CT scaning before operation. Comparison was studied between postoperational pathology and CT diagnosis of tumor early invasion of the trachea, bronchus and carina. Results Of 49 patients with esophageal carcinoma, 21 lesions were in the cervical esophagus, out of 18 cases with tracheal early invasion performed by CT scaning, 14 cases comfirmed by postoperational pathology; 28 lesions in the middle-upper segment of thoracic esophagus, out of 17 cases with tracheal, bronchial or carinate early invasion diagnosed by CT scaning, 14 cases testified by postoperational pathology. Tracheal, bronchial and carinate early invasion of esophageal carcinoma proved by CT did not accord with postoperational pathology completely. The sensitivity, specificity, and accuracy of CT diagnosis for the tracheal, bronchial and carinate early invasion of esophageal carcinoma were 93.3 %, 33.3 %, 76.2 % in cervical esophageal and 82.4 %, 72.7 %, 78.6 % in thoracic esophageal respectively. The contingency coefficients of preoperational CT scaning comparison with postoperational pathology are 0.52, 0.77 respectively. Conclusion Early invasion to the trachea, bronchus and carina identified by conventional CT procedure for patients with esophageal cancer was more accurate and specific in thoracic than that in cervical. Esophageal tumor early invasion to the trachea, bronchus and carina performed with CT corresponded to postoperational pathology in some measure. Operatablity did not completely depend on the invasion of the trachea, bronchus and carina of esophageal carcinoma performed with CT.