Differential Diagnostic Value and Imaging Characterization of the Nature of Benign and Malignant Tumors in the Stomach by Spiral CT Thin-layer Scanning
Objective:To investigate the differential diagnostic value of spiral electron computed tomography(CT)thin-layer scanning on the nature of benign and malignant tumors in the stomach,and to provide scientific reference for the diagnosis and treatment of gastric cancer.Methods:The clinical data of 106 patients with gastric tumors admitted to the hospital from January 2021 to January 2022 were retrospectively analyzed,and all the patients were examined by X-ray barium meal and CT thin-layer scanning.According to the results of patients'gastroscopic biopsy or surgical pathological examination,65 patients with benign tu-mors were divided into benign group,and 41 patients with malignant tumors were divided into malignant group.The imaging fea-tures of benign and malignant tumors in the stomach were compared,mainly including the features of mass diameter,lesion margin status,malignant niche shadow,mucosal invasion,and muscular layer invasion.The efficacy of X-ray barium meal,CT,and X-ray barium meal + CT in diagnosing benign and malignant tumors of the stomach was analyzed using gastroscopic biopsy or surgical pathological examination as the gold standard.Results:The detection rate of imaging features such as mass diameter≥5 cm,poor-ly defined lesion margins,malignant niches,mucosal invasion,and muscular layer invasion was higher in the malignant group than in the benign group,and the difference was statistically significant(x2=13.974,15.851,19.755,15.306,7.949,P＜0.05).The com-pliance rate,sensitivity,specificity,positive predictive value,and negative predictive value of X-ray barium meal + CT thin-layer scan for the diagnosis of benign and malignant tumors in the stomach were higher than those of X-ray barium meal and CT thin-layer scan as a single diagnostic modality,and the difference was statistically significant(x2=20.673,13.529,8.159,10.332,11.248,P＜0.05).The AUC for the diagnosis of benign and malignant tumors in the stomach was 0.685 for barium X-ray meal,0.762 for CT thin-layer scan,and 0.898 for barium X-ray meal + CT thin-layer scan.Conclusion:CT thin-layer scanning can provide a scientific reference for the diagnosis of benign and malignant gastric tumors and the evaluation of their conditions,with simple operation and good sensitivity.
Gastric tumorNature of tumorComputer tomographyDifferential diagnosisThin layer scanning
万方数据
维普
