128层螺旋CT重建技术在结肠肿瘤中的诊断价值

目的：探讨128层螺旋CT重建技术在结肠肿瘤中的诊断价值。方法对40例结肠肿瘤患者进行多层螺旋CT （MSCT）扫描，将原始数据在AW4.5工作站进行多平面重建图像（MPR）、表面遮盖显示（SSD）、仿真内窥镜技术（CTVE）重建处理，评价结肠肿瘤位置、大小和肠外表现，均经手术或结肠镜病理证实。结果 MPR、SSD和CTVE重建技术对结肠癌的检出率、敏感度、特异度及准确性高，更利于发现结肠癌的周围浸润、淋巴结转移和远处转移。结论 MPR、SSD、CTVE的结合不仅可以对结肠肿瘤病灶形态、范围进行明确直观的分析，发现结肠癌的周围浸润、淋巴结转移和远处转移，更有利于辨别病灶周围复杂结构关系，进而准确地进行术前分期，为临床制定手术方案提供有价值的依据。

The value of 128-slice helical CT reconstruction techniques on the diagnosis of colon tumor

Objective To investigate the value of 128-slice Helical CT reconstruction techniques on the diagnosis of colon tumor. Methods This prospective study included 40 patients with suspected colon tumor and they all had been scanned by multi-slice spiral CT （MSCT）.To evaluate the location,size,and parenteral of the colon tumor,the original data was proceeded with multiplanar reconstruction images（MPR）,surface cover display（SSD）and CT virtual endoscope （CTVE）on AW4.5 workstation.The results were confirmed by the pathology of surgery or colonoscopy. Results MPR, SSD and CTVE have high detection rate,accuracy,sensitivity and specific for colon tumor,and more conducive to find surrounding invasion,lymph node metastasis and distant metastasis of colon cancer. Conclusion The combination of the MPR,SSD,CTVE could be used to analyze the form and scope of the colon tumor intuitively,found surrounding invasion,lymph node metastasis and distant metastasis of colon cancer,more conducive to solve the lesion complicated structures around it,and then accurately for preoperative staging,provide valuable basis for clinical surgery plan formulation.