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目的探讨多排螺旋CT扫描(MSCT)、三维重建(3DCT)对胃癌的诊断价值。方法回顾分析38例经胃镜活检或手术病理证实的胃癌MSCT、3DCT表现,利用原始的横断面扫描数据进行多平面重建,评价图像质量、病变检出率、临床分期等,观察病变及其周围情况,并与手术病理进行对照,评价MSCT和3DCT对胃癌术前分期的满意度。结果 MSCT和3DCT的图像质量均显示满意,对胃部病灶发现率为100%,对早期和进展期胃癌诊断准确率分别为75%和100%,对胃周浸润和淋巴结转移准确率分别为100%和85.2%。结论 MSCT、3DCT提高了图像质量和病变检出能力,可提高早期胃癌的发现率,对进展期胃癌和胃周浸润的诊断十分可靠,能够较好地进行术前分期,为胃癌的术前准确评价提供了可信依据。
Objective To investigate the diagnostic value of multi-slice spiral CT (MSCT) and three-dimensional reconstruction (3DCT) in gastric cancer. Methods Retrospective analysis of 38 cases of gastric cancer by gastroscope biopsy or pathology confirmed by MSCT, 3DCT performance, the use of the original cross-sectional scan data for multiplanar reconstruction, evaluation of image quality, lesion detection rate, clinical stage, observe the lesions and their surroundings , And compared with the surgical pathology, to evaluate the satisfaction of MSCT and 3DCT in preoperative staging of gastric cancer. Results The image quality of both MSCT and 3DCT was satisfactory. The detection rate of gastric lesions was 100%. The accuracy of diagnosis of early and advanced gastric cancer was 75% and 100% respectively. The accuracy of gastric perfusion and lymph node metastasis were 100% % And 85.2%. Conclusion MSCT and 3DCT can improve the image quality and detection ability of lesions and improve the detection rate of early gastric cancer. The diagnosis of advanced gastric cancer and perivascular infiltration is very reliable and can be performed preoperatively. Evaluation provides a credible basis.