输尿管息肉的MSCT诊断  

Diagnosis of multislice spiral CT in ureteral polyps

作　　者：李海飞[1] 

机构地区：[1]滨州医学院烟台附属医院医学影像科,山东烟台264100

出　　处：《实用放射学杂志》2016年第4期570-572,共3页Journal of Practical Radiology

摘　　要：目的 探讨MSCT多期增强扫描对输尿管息肉的诊断价值。方法 回顾性分析经手术病理证实的输尿管息肉7例，其中纤维上皮性息肉5例，炎性息肉2例，均行多期增强扫描，在图像工作站对各期数据行薄层重建，行最大密度投影（MIP）、多平面重建（MPR）及容积再现（VR）等三维后处理。结果 纤维上皮性息肉多见于青少年男性，纵径明显大于横径，呈条索状、乳头状或柱状，动态增强表现为动脉期无强化或轻度强化，延迟期强化明显。炎性息肉多见于成年人，且均伴有结石，纵径略大于横径，呈梭形，周围边界不清伴有索条状改变，上下输尿管有范围较长的管壁增厚，动态增强表现为动脉期较明显强化，延迟期进一步强化。结论 MSCT能够显示输尿管息肉的动态强化特点及形态特征。Objective To investigate the diagnostic value of multislice spiral CT （MSCT） in ureteral polyps by muki-phase enhanced scan. Methods Seven cases of ureteral polyps confirmed by operation and pathology were retrospectively analyzed, including 5 fibro-epithelial polyps and 2 inflammatory polyps. All of the patients underwent MSCT multi-phase enhanced scan. Thin slice reconstruction, three-dimensional post processing including maximum intensity projection （MIP）, multi planar reconstruction （MPR） and volume reconstruction （VR） were performed for each phase data. Results The fibro-epithelial polyps were more common in the young men. Their longitudinal diameters were significantly greater than the transverse diameters. The shapes were cordal, papillary, or columnar. They were not enhanced obviously in the arterial phase, however, enhanced obviously in the delayed phase. Inflammatory polyps were more common in adults and all of them were accompanied with stones. Their longitudinal diameters were slightly greater than the transverse diameters, and the shape was spindle. The margins were unclear with cord changes. The upper and lower ureters showed extensive thickening of the wall. These polyps were significantly enhanced in the arterial phase and further strengthened in the delayed phase. Conclusion The morphology and dynamic enhancement characteristics of ureteral polyps can be displayed and clearly diagnosed by MSCT.

关 键 词：输尿管息肉 计算机体层成像 后处理技术 

分 类 号：R693[医药卫生—泌尿科学] R814.42[医药卫生—外科学]