腹部CT扫描(低剂量)在腹壁疝中的应用效果  

Effect of abdominal CT scan(low dose)on abdominal wall hernia

作　　者：刘晨鹏 潘振宇[1] 龚翔[1] 金淑荣 Liu Chenpeng;Pan Zhenyu;Gong Xiang;Jin Shurong(Department of radiology,Beijing Chaoyang Hospital,Capital Medical University,Beijing 100040,China)

机构地区：[1]首都医科大学附属北京朝阳医院西区放射科,100040

出　　处：《中华疝和腹壁外科杂志（电子版）》2020年第4期400-402,共3页Chinese Journal of Hernia and Abdominal Wall Surgery(Electronic Edition)

摘　　要：目的探究在腹壁疝诊断的过程中使用CT腹部扫描(低剂量)的效果。方法选取2019年1至12月,首都医科大学附属北京朝阳医院西区放射科收治65例腹壁疝患者的资料。在临床初次检查时行正常剂量(260m As组)进行腹部CT扫描,在其后进行的腹部增强时将平扫序列降低为原来的50%剂量(130 mAs组),观察并比较效果。结果正常剂量组优良率(92.30%)稍高于低剂量组(83.10%),但其差异无统计学意义(χ~2=0.251,P=0.684)。260m As组的CNR及SNR分别为12.17±1.86、3.66±1.15,稍高于130 mAs组10.26±2.16、2.87±1.06,260 mAs组的SD为9.6±1.61稍低于130 mAs组11.5±2.51,差异有统计学意义(t=0.685、0.375、0.411,P均<0.05)。结论腹部CT扫描(低剂量)在腹壁疝的应用效果良好,相比较常规剂量而言,在图像质量和噪音等方面无明显差异,但可以有效地降低辐射剂量,因而值得在腹壁疝的诊断治疗过程中进行借鉴和使用。Objective To investigate the effect of CT abdominal scan(low dose)in the diagnosis of abdominal wall hernia.Methods Sixty-five patients with abdominal wall hernia admitted to Beijing Chaoyang hospital from January to December 2019 were selected for diagnosis.Normal dose of abdominal CT scan(260 mAs)was performed at the time of the initial clinical examination as the control group.In the subsequent abdominal enhancement,the plain scan sequence was reduced to 50%of the original dose(130 mAs),which was set as the observation group.Results The rate of excellent and good images in the control group was slightly higher than that in the observation group,but there was no significant difference(χ2=0.251,P=0.684).The CNR and SNR of the control group were 12.17±1.86 and 3.66±1.15,respectively,which were slightly higher than 10.26±2.16 and 2.87±1.06 in the observation group.The SD of the control group was 9.6±1.61,which was slightly lower than that of the observation group 11.5±2.51.The difference was statistically significant(t=0.685、0.375、0.411,P<0.05).Conclusion Abdominal CT scan(low dose)has a good effect on abdominal hernia.Compared with conventional dose,there is no significant difference in image quality and noise,but it can effectively reduce the radiation dose.Therefore,it is worthy of reference and use in the diagnosis and treatment of abdominal hernia.

关 键 词：体层摄影术 X线计算机 低剂量 诊断 腹壁疝 应用效果 

分 类 号：R656.2[医药卫生—外科学]