双源CT能量模拟平扫对鉴别老年颈部淋巴结性质的应用价值

发布时间：2018-06-29 07:03

本文选题：双源CT + 模拟扫描　；参考：《中国处方药》2016年12期

【摘要】：目的探究双源CT能量模拟平扫对鉴别老年颈部淋巴结性质的应用价值。方法选择2014年6月1日~2016年3月1日期间收治疑诊淋巴结肿大的老年患者54例,应用双源CT能量模拟平扫对颈部淋巴结肿大进行性质鉴别,观察常规平扫和虚拟平扫的CT值、SNR、CNR和图像质量评分的比较以及辐射量对比情况。结果颈部肿大淋巴结的老年患者经常规扫描、虚拟平扫动脉期和静脉期的平均CT值、SNR、CNR结果差异无统计学意义(H=3.546、4.721、4.068,P0.05)。同时三者获取的图像质量评分结果差别不大,差异无统计学意义(H=3.153,P0.05)。常规扫描和双源CT能量模拟扫描在DLP、CTDIvol以及ED量的比较上,常规扫描的方法远高于双源CT模拟扫描,两者结果差异有统计学意义(P0.05)。结论双源CT能量模拟平扫能够准确鉴别出颈部淋巴结肿瘤的性质,并且可以大幅度的降低患者所受的辐射量,对常规扫描的取代有较大的应用价值。
[Abstract]:Objective to explore the value of dual-source CT energy simulated plain scan in differentiating cervical lymph nodes in elderly patients. Methods from June 1, 2014 to March 1, 2016, 54 elderly patients with suspected lymphadenopathy were selected, and the nature of cervical lymphadenopathy was distinguished by dual source CT energy simulated plain scan. The CT value of conventional plain scan and virtual plain scan and the comparison of image quality score and CNR were observed. Results there was no significant difference in the average CT value of SNRNR between virtual plain scan and venous phase in the elderly patients with enlarged cervical lymph nodes (P 0.05). At the same time, the image quality score obtained by the three groups had no significant difference (P 0.05). Conventional CT scan and dual-source CT energy simulation scan were compared in DLP CT DIvol and Ed, the conventional scanning method was much higher than that of dual-source CT simulated scan, the difference between the two results was statistically significant (P0.05). Conclusion Dual-source CT energy simulated plain scan can accurately identify the nature of cervical lymph node tumors and can significantly reduce the amount of radiation received by patients. It is of great value for the replacement of conventional scanning.
【作者单位】：天津市北辰区中医医院放射科;
【分类号】：R551.2;R816.1

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