Diagnosis value of spiral CT for lymph node metastasis in thoracic esophageal carcinoma / 肿瘤研究与临床

ABSTRACT

Objective To analysis the spiral CT scan diagnosis value of lymph node metastasis in thoracic esophageal carcinoma and investigate the rules of lymph node metastasis distributions.Methods 117 patients with surgically and pathologically proved esophageal carcinoma underwent CT scans of the chest before the surgical operation to identify the presence of lymph node metastasis and evaluate the diagnosis value of spiral CT in lymph node metastasis.CT imaging which was detected by CT and histopathological analysis performed with attention to the distribution characteristics.Results In 117 cases of esophageal patients,the diagnosis of sensitivity,specific and accuracy degree on lymph node metastasis were 86.0 ％,80.6 ％,84.6 ％.The most lymph node metastasis in the upper thoracic esophagus is the mediastinum group[8/14(57.1％)]and the trachea group[4/14(28.6 ％)].the middle is on the trachea surrounding group[21/41(51.2 ％)],the main pulmonary artery window group[17/41(41.5 ％)]and subcarinal group[15/41(36.6 ％)].the lower thoracic esophagus is around the side of preventriculus[7/19(36.8 ％)]and the left gastric artery[5/19(26.3 ％)]respectively.Conclusion Spiral CT imaging can accurately evaluate the lymph node metastasis of esophageal and distribution characteristics.