目的探析肾输尿管结石应用 MSCT曲面重组尿路成像检查诊断的优劣 势。方法 入选我院疑似肾输尿管结石患 者92例，按检查方法的不同分入两组，每 组46例，观察组进行MSCT曲面重组尿路 成像检查，对照组进行磁共振尿路成像 系统检查，比较两组的诊断符合率。结 果 MSCT曲面重组尿路成像特征为输尿管 中下段腔内、肾盂出现短条状、结节状多 发性高密度影，输尿管及短条状影走向相 同，输尿管、肾盂、肾盏轻度积水扩张； MSCT曲面重组尿路成像显示肾盏结石27例 次(100.0%)，输尿管结石8例次(72.7%)， 肾合并输尿管结石9例次(77.8%)；磁共 振尿路成像系统检查显示肾结石23例次 (88.5%)，输尿管结石7例次(58.3%)，肾 合并输尿管结石5例次(55.5%)，MSCT的诊 断符合率91.3%显著高于对照组的76.1%， 差异具有统计学意义(P<0.05)。结论 MSCT曲面重组尿路成像检查是诊断肾输尿 管结石的重要方法之一，分辨率高，可以 显示管腔外结构，但对尿路结石不可直观 显示，只能结合平扫时与扩张积水低密度 成对比的高密度可以确诊；MRU显示腔外 结果不清，只能结合扩张的积水高信号内 显示无信号条形或结节无信号应，极易导 致小结石漏诊。

Objective To explore the kidney ureteral calculi application of MSCT curved surface restructure the advantages and disadvantages of urinary tract imaging diagnosis. Methods Selected from 92 cases of ureteral calculi patients suspected kidney, according to the different method of checking points into two groups, 46 cases in each group, the observation group of MSCT curved surface reconstruction imaging of the urinary tract, the control of magnetic resonance urinary tract imaging system check, to compare the diagnostic accordance rate of two groups. Results MSCT curved surface restructure urinary tract imaging characteristics of ureter middle section of the cavity, renal pelvis appear short strip, nodular shadows of multiple low signal, ureter and short strip shadow to the same, ureter and renal pelvis and calyces mild water expansion; MSCT curved surface restructure urinary tract imaging showed renal calyx calculi 27 cases (100.0%), 8 cases of ureteral calculi times (72.7%), 9 cases (77.8%) of the kidney with ureteral calculi; Magnetic resonance examination showed urinary tract imaging system kidney stones in 23 cases (88.5%), 7 cases of ureteral calculi (58.3%), 5 cases (55.5%) of the kidney with ureteral calculi, MSCT group the diagnosis coincidence rate of 91.3% to 76.1%, significantly higher than that of control group statistically significant difference (P<0.05). Conclusion MSCT curved surface restructure urinary tract imaging is one of the important methods for diagnosis of ureteral calculi, high resolution, but it cannot display tube cavity structure, and the visual display of urinary stones, and only with water expansion of high signals in the movie indirectly shows no filling defect in the shadow, easily lead to misdiagnosis and small stones.