Effects of MSCT enhanced scan image diagnosis on clinical outcome of patients after radical gastrectomy and its influence on misdiagnosis rate.
2021
PURPOSE To explore the effect of multi-slice spiral computed tomography (MSCT) enhanced scan image diagnosis on clinical outcome of patients after radical gastrectomy and its influence on misdiagnosis rate. METHODS A total of 62 patients diagnosed with gastric cancer and undergoing radical gastrectomy were selected. All patients were reexamined 2-6 months after operation. Conventional CT and MSCT enhanced scan were performed for image diagnosis, and the results were compared with those of gastroscopic biopsy. Finally, the misdiagnosis rate, negative predictive value, positive predictive value, sensitivity and specificity of conventional CT and MSCT enhanced scan for postoperative recurrence were analyzed. RESULTS According to the results of gastroscopic biopsy, there were 35 cases suspected of recurrence, and 27 cases without postoperative recurrence. The specificity and sensitivity of conventional CT and MSCT enhanced scan were 85.19% vs. 92.59%, and 65.71% vs. 92.16%, respectively. Both specificity and sensitivity of MSCT enhanced scan were higher than those of conventional CT, with statistically significant differences (p<0.05). MSCT enhanced scan had a lower misdiagnosis rate for postoperative recurrence than conventional CT (5.71% vs. 22.86%) (p<0.05). Moreover, the negative predictive value and positive predictive value of conventional CT and MSCT enhanced scan were 65.71% vs. 86.21%, and 85.19% vs. 93.94%, respectively. The results showed that MSCT enhanced scan had higher negative predictive value and positive predictive value for postoperative recurrence than conventional CT, with statistically significant differences (p<0.05). CONCLUSION MSCT enhanced scan image diagnosis is of great significance for assessing the condition of disease, determining the recurrent foci after radical gastrectomy, and developing the subsequent therapeutic regimen.
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