【摘要】 目的:探讨128层螺旋CT血管追踪技术在输尿管非结石病变诊断中的应用价值。方法:65例输尿管非结石病变患者行尿路CT造影(CTU)。对增强延时扫描后输尿管管腔内呈连续性强化者采用血管追踪技术(VTT)后处理。结果:65例患者输尿管不全梗阻,输尿管全程显影,重建图像质量优异,所见病变经手术或临床追踪证实完全相符。其中32例为输尿管癌,12例膀胱癌侵犯输尿管末端,盲肠癌及直肠癌术后复发侵犯输尿管各4例,8例输尿管炎性粘连,5例肾输尿管畸形,病变显示率100%。结论:多层螺旋CT的CTU检查,当输尿管内对比剂达到一定程度,采用VTT来展示输尿管病变可获得优异的输尿管整体成像,对输尿管梗阻性病变诊断及鉴别诊断具有重要临床价值。更多还原

【Abstract】 Objective:The purpose of this report was to assess the application of vessel tracking technology(VTT)of128-slice spiral CT in the diagnosis of ureteral non-calculous diseases.Methods:Sixty-five patients with urethral non-calculous diseases underwent computed tomography urography(CTU)were studies retrospectively.Vascular tracing technique(VTT)was applied to in all cases who showed continuous enhancement inside the ureteral tracts on delayed enhanced scan.Results:Ureter tracts were fully shown in 65 patients with partial obstruction on CTU images and the image quality of the reconstructed images were excellent for further study.The ureteral lesions displayed on CTU were proved to be completely consistent with surgery and clinical follow-ups.As fot the 65 cases,there were 32 cases of ureteral carcinoma,12 cases of bladder cancer involving the end of ureter,4cases of recurrent postoperative appendiceal cancer involving the ureter,4cases of recurrent postoperative colorectal cancer involving the ureter,8cases of ureteral inflammatory adhesion and 5cases of kidney-ureter malformations.The visualization rate of lesions was 100%.Conclusion:Once contrast medium reaches a certain concentration inside the ureter,CTU examination with MDCT using VTT can display the ureteral lesions which make it possible to obtain an excellent overall image of ureter.And,based upon our study,it has significant clinical value for diagnosis and differential diagnosis of ureteral non-calculous obstructive lesions.更多还原