Objective:To compare the application value of test bolus and bolus tracking for preoperative T staging of gastric cancer.Methods:A total of 130 patients with gastric cancer diagnosed by gastroscopy and pathology were randomly divided into the experimental group and the control group,with 65 cases in each group.Test bolus was used in the experimental group and bolus tracking was used in the control group for CT enhanced scanning,and other scanning parameters were consistent between the two groups.Kappa coefficient was used to evaluate the consistency between preoperative imaging T stage and postoperative pathological T stage.The accuracy,specificity,sensitivity,positive predictive value and negative predictive value of imaging T stage in the diagnosis of gastric cancer were calculated.Results:The consistency of imaging T stage with test bolus and postoperative pathological T stage was good(K=0.742),while the consistency of imaging T stage with test bolus and postoperative pathological T stage was not good(K=0.483).The overall accuracy of the experimental group was higher than that of the control group(81.5%vs.64.6%,P<0.05).The accuracies of T1,T2,T3,T4 stage in the experimental group were higher than those in the control group(92.3%vs.87.5%,61.5%vs.55.6%,61.5%vs.37.5%,96.2%vs.75.0%).The test bolus had higher sensitivity,positive predictive value and negative predictive value for the diagnosis of preoperative staging,but there was no significant difference in specificity.Conclusions:The test bolus is superior to the bolus tracking in the diagnosis of preoperative imaging T stage of gastric cancer,which is beneficial to the preoperative evaluation and treatment of gastric cancer,and is worthy of clinical application.
Test BolusBolus TrackingGastric cancerNeoplasm stagingTomography,X-ray computed
万方数据
维普
