低剂量CT在儿童肘关节外伤中的应用  

Application of Low-dose CT on Children Elbow Trauma

作　　者：陈炳[1] 杨燕[1] 赵振华[1] 

机构地区：[1]绍兴市人民医院

出　　处：《中国医学计算机成像杂志》2015年第3期287-289,共3页Chinese Computed Medical Imaging

摘　　要：目的:探讨低剂量CT扫描在儿童肘关节外伤中应用的价值。方法:选取肘关节外伤后行CT扫描的患儿90例,随机分成常规剂量组(120k V、150m A)和低m A组(120k V、50m A)、低k V组(80k V、150m A),扫描完成记录容积CT剂量指数(CTDIvol)和剂量长度乘积(DLP),并按照骨折线的清晰度对图像进行评级,分别进行统计学分析。结果:低m A组、低k V组DLP仅为常规剂量组的31.9%和31.5%;而各组图像均能满足临床诊断要求,差异无统计学意义(P>0.05)。结论:儿童肘关节外伤行低剂量CT扫描,显著减少了射线剂量,并且完全能够满足临床的诊断要求。Purpose： To investigate the value of low-dose CT on children elbow trauma. Methods： The elbow injury underwent CT scans in 90 children cases were randomly divided into conventional-dose group （120kV,150mA） and low-mA group （120kV, 50mA） , low-kV group （80kV,150mA） , recording volume CT dose index （CTDIvol） and dose length product （DLP） after scans completed, and rating image according to the fracture line clarity, then statistical analysis respectively. Results： The low mA group and low kV group of DLP is only 31.9% and 31.5% of the conventional dose group ; and each group can meet the clinical requirements, which was no significant difference （P〉0.05）. Conclusion： The low-dose CT scanning of children elbow joint trauma can significantly reduce the radiation dose, and completely meet the requirements of clinical diagnostic

关 键 词：儿童 肘关节 低剂量 X线断层扫描 

分 类 号：R726.8[医药卫生—儿科] R816.92[医药卫生—临床医学]