青少年动脉导管韧带钙化的调查及其CT表现分析

Investigation and CT findings of calcification of the ligamentum arteriousum in adolescents

目的:探讨青少年动脉导管韧带钙化(calcification of the ligamentum arteriousum,CLA)的发生率及其CT表现。方法:回顾性分析本院2017-01-01~12-31收治的864例0~25岁青少年患者的胸部CT图像,按年龄分为童年组(0~7岁)、少年组(8~13岁)、青年组(14~25岁),分析三组动脉导管韧带钙化的形态、大小、CT值等CT征象。结果:CLA发生的最小年龄为79d,所有患者CLA总阳性率为14.58%,其中≤13岁组CLA阳性率最高,占64.23%。组间比较发现,各组斑点(结节)状钙化与条状钙化的发生率存在统计学差异(P<0.05);各组CT值无统计学差异(P>0.05)。Pearson相关性分析显示,CLA形态与年龄存在相关性;CT值与年龄无相关性。结论:≤13岁儿童CLA最常见。CLA有特定的发病部位,其形态、大小、CT值呈多样性,应提高对CLA的正确认识,以避免日常工作中的漏误诊。

Objective：To investigate the incidence rate and CT findings of calcification of the ligamentum arteriousum（CLA）in adolescents.Methods：A total of 864 cases with chest CT images of 0-25 years old adolescents from January 1 to December 31,2017 in our hospital were divided into childhood group（0-7 years old）,juvenile group（8-13 years old）and youth group（14-25 years old）by age.CT signs such as shape,size and CT value of CLA in thre groups were analyzed.Results：The lowest age of CLA was 79 days,and the positive rate of 864 cases was 14.58%,and under 13 years groups was 64.23%.There were statistical differences in spot/nodular calcification and strip calcification between the three groups（P〈0.05）.There was no statistical difference in CT value between the three groups（P〉0.05）.Pearson correlation analysis showed that there was a correlation between the types of CLA and age,but there was no correlation between CT value and age.Conclusion：CLA is the most common disease under 13 years old.CLA has specific location,and its shape,size and CT value can be varied,improving the correct understanding of CLA can avoid misdiagnosis in daily work.