目的 探究双源CT双能量技术在 肾脏占位性病变的临床应用价值。方法 选择2012年1月至2014年8月在新疆喀什 地区第二人民医院接受治疗的肾脏占位性 病变患者78例。分别采用常规CT扫描和 双源CT双能量技术的增强扫描。将双源 CT增强扫描结果记为观察组，常规CT扫 描记为对照组。对比两组扫描图像及CT 值，以及辐射剂量。结果 观察组所收集 的图像92.31%(72/78)的病患大部分能清 晰显示，满足医师的诊断要求。并且观 察组在各个部位扫描得到的CT值与对照 组无显著差异且SNR显著高于对照组，而 辐射剂量中的CTDIvoII、DLY以及ED均显 著低于对照组。差异均有统计学意义(均 P＜0.05)。结论 采用双源CT双能量技术 对肾脏占位性病变进行诊断的图像质量较 好，能满足检查的需要。此外，扫描结果 中CT值可观、噪声比较低，而且辐射剂量 非常低。在临床上具有较高的应用价值， 值得推广应用。

Objective To explore the technique of dual source dual energy CT lesions clinical application value in the kidney. Methods 78 cases of renal occupying lesionsin was in the Second People's Hospital of Xinjiang Kashi Region for treatment From January 2012 to August 2014. Enhanced scan were used routine CT scan and dual energy technique of dual source CT. The dual source CT scan results recorded in the observation group, routine CT scan as control group, compared the two groups of images and the CT value, and the radiation dose. Results In the observation group, 92.31%(72/78) the patients of the collected most of the image display, to meet the requirements of medical diagnosis. And the observation group in each part of scanning CT value had no significant difference with control group and SNR was significantly higher than that of control group, and the radiation dose of CTDIvoII, DLY and ED were significantly lower than those of the control group. The differences were statistically significant (all P<0.05). Conclusion The dual energy technique of dual source CT in lesions of diagnostic image quality is better in the kidneys, can meet the needs of examination. In addition, the scan results in considerable noise, CT value is relatively low, and the radiation dose is very low. It has higher value in clinical application, it is worthy of popularization and application.