【摘要】 目的:探讨多层CT及三维重建技术在原发性输尿管癌中的诊断价值。方法:搜集经手术或活检病理证实的原发性输尿管癌16例,均行多层螺旋CT扫描(MSCT),多平面重建(MPR)、曲面重建(CPR)、最大密度投影(MIP)及容积漫游技术(VRT)处理。结果:原发性输尿管癌轴位CT表现为管腔内软组织肿块伴管壁增厚,增强扫描轻-中度强化,增强峰值位于静脉期,MPR和CPR图像均清晰显示肿瘤侵犯的部位、范围、数目及输尿管壁增厚和周围侵犯情况,CPR图像能在一个平面上显示输尿管全程,MIP和VRT图像类似于静脉尿路造影(IVU)。结论:MSCT及三维重建技术对原发性输尿管癌具有较高的诊断价值,能为临床治疗方案的选择和预后评估提供有力帮助。更多还原

【Abstract】 Objective:To investigate the diagnostic value of multi-slice CT(MSCT) and three dimensional reconstruction in primary ureteral carcinoma. Methods:Sixteen cases with primary ureteral carcinoma proved by operation or biopsy pathology were collected in the study. All patients had undergone MSCT scanning with multi-planar reformation(MPR), curved planar reformation(CPR), maximum intensity projection (MIP) and volume rendering technique(VRT). Results:The axial CT images displayed intraureteral soft tissue mass with thickened wall. The foci had mild or moderate enhancement after contrast injection and the peak enhancement was in the venous phase. The MPR and CPR images can clearly demonstrate the location, extent, number, thickened ureteral wall and adjacent invasion of the tumor. CPR image can exhibit the whole range of ureter in one plane, MIP and VRT images were similar to intravenous urography. Conclusion:MSCT and three dimensional reconstruction had very important value in the diagnosis of primary ureteral carcinoma, it can supply valuable information for clinic in treatment planning and prognosis evaluation.更多还原