论文部分内容阅读
[目的]评价螺旋CT在直肠癌术前放化疗治疗效果评价中的应用。[方法]回顾性分析74例直肠癌患者放化疗前后的螺旋CT图像资料及术后病理资料,分析放化疗前后肿瘤最大浸润深度、肿瘤长径、肿瘤外缘距直肠筋膜的最短距离、肿瘤下缘距肛缘最短距离、淋巴结数目及短径的差异,分析放化疗后短径≥5mm淋巴结数目与术后病理检出阳性淋巴结数目的相关性。[结果]CT图像显示,放化疗后较放化疗前的肿瘤最大浸润深度、肿瘤长径显著性减小,肿瘤外缘距直肠筋膜的最短距离、肿瘤下缘距肛缘最短距离显著性增大,淋巴结数目显著减少。病理检出阳性淋巴结个数与放化疗后CT图像所示短径≥5mm淋巴结数目呈正相关(r=0.287,P=0.013)。[结论]螺旋CT在评价放化疗对直肠癌T、N分期的治疗效果上具有重要价值。
[Objective] To evaluate the application of spiral CT in the evaluation of preoperative radiotherapy and chemotherapy in rectal cancer. [Methods] The spiral computed tomography (CT) images and postoperative pathological data of 74 patients with rectal cancer before and after radiotherapy and chemotherapy were retrospectively analyzed. The maximum depth of tumor invasion, the length of tumor, the shortest distance from the rectum to the fascia, The shortest distance from the lower edge of the anal verge, the number of lymph nodes and the short diameter of the difference between the radiotherapy and chemotherapy after the analysis of the number of small diameter ≥ 5mm lymph nodes and the number of postoperative pathological positive correlation. [Results] The CT images showed that the maximum depth of tumor invasion, the significant decrease of tumor length, the shortest distance from the tumor to the rectum and the shortest distance between the tumor margin and the anal verge Large, significantly reduced the number of lymph nodes. There was a positive correlation between the number of positive lymph nodes detected by pathology and the number of lymph nodes with a diameter of 5 mm or more (P = 0.013). [Conclusion] Spiral CT is of great value in evaluating the effect of radiotherapy and chemotherapy on T and N staging of rectal cancer.