Clinical value of multi-slice spiral CT in the diagnosis of esophageal fistula after radiotherapy for esophageal cancer / 中国基层医药

ABSTRACT

Objective To investigate the application of multi-slice spiral CT in the diagnosis of esophageal fistula after esophageal cancer radiotherapy.Methods The subjects who were suspected to have esophageal fistula after radiotherapy for esophageal cancer admitted to the People's Hospital of Quzhou from January 2015 to February 2017 were randomly divided into A group and B group by means of lottery,with 15 cases in each group.The detection scheme of A group was multi-slice CT (MSCT),and the diagnosis of B group was performed by routine esophagography.The diagnostic accuracy of the two groups was observed,and the rate of missed diagnosis was compared.The amount of contrast agent such as gargle,mediastinal gas accumulation,and pneumothorax was observed.Results After the multi -slice spiral CT technique in A group,the missed diagnosis rate was 0％,which was significandy lower than that of B group (40％),the difference was statistically significant (x2 =8.097,P =0.016).In A group,the amount of contrast agent used in the diagnosis process were (32.4 ± 4.5) mL,(25.1 ± 3.2) mL,(20.5 ± 2.4) mL,(19.5 ± 12.3) mL in the diagnosis of effusion,pneumothorax,pneumonia and empyema,which were significantly better than those in B group (t =14.325,15.652,16.534,15.973,P =0.025,0.018,0.013,0.017).Conclusion Esophageal cancer complicated with esophageal fistula,especially small fistula is difficult to observe,resulting in missed diagnosis,the use of multi-slice spiral CT technology combined with appropriate post-treatment can greatly improve the accuracy of diagnosis,and thus timely treatment of patients,it is recommended for use.