原发性输尿管息肉MSCT诊断  

Multi-Slice Spiral CT Diagnosis of Primary Ureteral Polyps

作　　者：朱玉春[1,2] 邢伟[3] 王建良[1,2] 孔婧婧[1,2] 张怀信[1,2] 

机构地区：[1]江苏大学附属昆山医院 [2]昆山市第一人民医院放射科,215300 [3]常州市第一人民医院放射科,213003

出　　处：《临床放射学杂志》2014年第7期1048-1051,共4页Journal of Clinical Radiology

基　　金：江苏大学2012年度医学临床科技发展基金项目(编号:JLY20120061);昆山市第一人民医院首批"131人才工程"培养专项基金(昆人医2013-16)

摘　　要：目的探讨MSCT后处理重组技术对原发性输尿管息肉的诊断价值。方法回顾性分析6例经手术病理证实的原发性输尿管息肉患者MSCT资料,利用原始数据进行曲面重组法(CPR)和容积成像法(VR)重组。结果6例患者均为单发,发生于左侧和右侧输尿管各3例。病灶位于输尿管中上段1例,中下段5例;4例伴有不同程度肾盂、输尿管扩张积水,2例伴有同侧肾脏萎缩,2例伴有同侧输尿管上段扭曲,1例伴有同侧双肾盂双输尿管重复畸形,4例输尿管下段息肉突入膀胱,2例伴有肾结石。MSCT平扫表现为病变侧输尿管管腔内等密度或稍高密度软组织影,增强后延迟扫描均表现为输尿管管腔内的充盈缺损,沿着输尿管走行呈索条状。结论 MSCT可以清晰显示原发性输尿管息肉的发生部位和病灶形态,结合CPR和VR技术可以立体直观显示病灶。Objective To investigate MSCT features of primary ureteral polyps, and to assess the diagnostic value of MSCT post-processing reconstruction techniques in diagnosing primary ureteral polyps. Methods CT materials of 6 patients with surgically- and pathologically-proved primary ureteral polyps were retrospectively analyzed. The raw data were used to make the curved planar reconstruction （CPR） and the volume rendering reconstruction （VRT）. The results were analyzed. Results The lesion was single in all patients. Of the six patients, the lesion occurred at the left ureter in 3 and at the right ureter in other three. The lesion＇ s location included upper-middle segment of ureter （ n = 1 ） and middle-lower segment of ureter （ n = 5 ）. The concomitant findings included different degrees of pyeloureterectasis with hydronephrosis （ n = 4 ） , ipsilateral renal atrophy （ n = 2 ） , tortuous ipsilateral upper ureter （ n = 2 ） , duplication malformation of ipsilateral pelvis and ureter （ n = 1 ）, protrusion of the polyps at lower segment of the ureter into the bladder （ n = 4） and renal stone （ n = 2）. On plain MSCT scans, the lesions were characterized by iso-density or slight high-density soft tissue shadow within the ureter lumen, which became a filling defect within the ureter lumen on subsequent contrast-enhanced delayed scans, assuming strip appearance and running along with the ureter. Conclusion MSCT scanning can clearly display the location and shape of the primary ureteral polyps, and the lesion can be stereoscopically visualized when CPR and VRT techniques are employed.

关 键 词：输尿管息肉 原发性 体层摄影术 X线计算机 

分 类 号：R737.13[医药卫生—肿瘤] R816.7[医药卫生—临床医学]