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目的分析胃肠间道质瘤的螺旋CT图像的表现特点,探讨螺旋CT在胃肠道间质瘤的诊断与鉴别诊断中的作用和价值。方法对经手术病理诊断确诊为胃肠道间质瘤的26例患者的螺旋CT表现特点进行回顾性的分析,并与病理诊断结果进行对照。结果 26例胃肠间道质瘤患者中有17例患者的肿瘤形状呈类圆形或椭圆形,9例患者呈不规则分叶状。在进行多期增强扫描时,肿瘤呈现出明显的不均匀强化,其实质部分的强化程度呈现从中等到高度的明显强化,而坏死区域则不强化。胃肠间道质瘤的螺旋CT表现与患者的术后病理结果对照,螺旋CT对肿瘤的定位准确率92.3%,良性与恶性的鉴别符合率为80.8%,诊断是否转移的符合率为91.7%。结论螺旋CT扫描检查在胃肠道间质瘤的诊断和鉴别诊断中有较高的价值和重要作用,对于胃肠道间质瘤的定位、转移的诊断结果与病理诊断结果的符合率较高,对于胃肠道间质瘤的定性有一定的难度。
Objective To analyze the features of spiral CT in gastrointestinal stromal tumors and to explore the value and significance of spiral CT in the diagnosis and differential diagnosis of gastrointestinal stromal tumors. Methods The spiral CT features of 26 patients diagnosed as gastrointestinal stromal tumors by operation and pathology were retrospectively analyzed and compared with the results of pathological diagnosis. Results Twenty-seven of the 26 patients with gastrointestinal stromal tumors had round or oval tumor shape, and 9 patients showed irregular lobulation. Tumors showed obvious inhomogeneous enhancement during multi-phase enhanced scans. The enhancement of the substantial part showed a significant enhancement from medium to high, while the necrotic area did not strengthen. Spiral CT findings of gastrointestinal stromal tumors were compared with postoperative pathological results. The accuracy of spiral CT in the localization of tumors was 92.3%, the coincidence rate of benign and malignant tumors was 80.8%, and the coincidence rate of 91.7% in diagnosis of metastasis. Conclusion Spiral CT scan has a high value and important role in the diagnosis and differential diagnosis of gastrointestinal stromal tumors. The coincidence rate of the diagnostic results of the diagnosis and the pathological diagnosis of gastrointestinal stromal tumors is high , For the qualitative gastrointestinal stromal tumors have a certain degree of difficulty.