CT增强联合小肠造影在直肠癌术前放疗靶区勾画中的价值
姚文良;安永恒;张佳卉
【期刊名称】《医学综述》 【年(卷),期】2012(018)023
【摘要】Objective To study the influence of enhanced CT with small bowel contrast on precise definition of target volumes of rectal cancer for preoperative radiotherapy. Methods Between March 2009 and November 2010 from Zibo Central Hospital, 12 patients with rectal cancer were given CT scan, the images were transmitted to Varian Eclipse 6. 0 3D planning system,gross tumor volume( GTV) and clinical tumor volume(CTV) were delineated separately. Results GTV,CTV of enhanced CT scan were lower than the plain scan, the difference was statistically significant ( P ＜ 0. 05 ). Small bowel were mistaken for metastatic lymph nodes in 3 cases with CT plain scan, metastatic lymph nodes in 3 cases were discovered with enhanced CT which were not found in CT plain scan. Conclusion Enhanced CT is useful in differentiating primary tumor and lymph node, small bowel and lymph node are easier distinguished by small bowel contrast, which improves the accuracy of the target delineation in radiotherapy.%目的 通过CT增强联合小肠造影在直肠癌放疗定位扫描中的应用,评估其对直肠癌术前放疗靶区勾画的精确性的影响.方法 对2009年3月至2010年11月淄博市中心医院收治的12例直肠癌患者行平扫和CT增强联合小肠造影定位扫描,传输到Varian
CT增强联合小肠造影在直肠癌术前放疗靶区勾画中的价值
