MRI在小儿先天性肛门直肠畸形诊断中的应用及准确性分析

目的探讨小儿先天性肛门直肠畸形(ARM)诊断中磁共振(MRI)的应用及其准确性。方法选取2017年1月至2018年12月该院收治的60例ARM患儿为研究对象,所有患儿均进行倒立位X线片检查与MRI检查。将手术病理检查结果作为金标准。比较两种诊断方法最终的诊断结果、诊断准确率。结果 MRI诊断的高位肛门闭锁型ARM 24例、中位肛门闭锁型ARM 33例,直肠盲端均位于PC线以上,其距肛门窝的距离均≥2.1cm。倒立位X线片诊断的高位肛门闭锁型ARM 20例、中位肛门闭锁型ARM 30例,直肠盲端均于PC线基本水平,其距肛门窝的距离约为1.8cm。MRI诊断的高位肛门闭锁型ARM、中位肛门闭锁型ARM例数多于倒立位X线片检查例数,差异有统计学意义(P<0.05)。结论 ARM诊断中,MRI的诊断结果准确、可靠,适宜在临床上多加推广。

Application and accuracy of MRI in diagnosis of congenital anorectal malformation in children

Objective To investigate the application and accuracy of MRI in the diagnosis of congenital anorectal malformation(ARM)in children.Methods A total of patients with ARM admitted to Affiliated Hospital of Yan′an University from January 2017 to December 2018 were enrolled.All patients underwent inverted X-ray examination and MRI examination.The results of surgical pathology were used as the gold standard.Compare the final diagnosis results and diagnostic accuracy of the two diagnostic methods.Results MRI diagnosis of the high anus atretic ARM 24 cases,the middle anus atretic ARM 33 cases,the rectum ends were located above the PC line,the distance from the anus was≥2.1 cm.There were 20 cases of high anus atretic ARM and 30 cases of middle anus atretic ARM diagnosed by inverted X-ray film.The rectal ends were all at the basic level of PC line,and the distance between them and the anus was about 1.8 cm.The numbers of cases of ARM,the middle anus atretic ARM and the high anus atretic ARM diagnosed by MRI were higher than the numbers of cases examined by inverted X-ray,and the differences were statistically significant(P<0.05).Conclusion In the diagnosis of ARM in children,the diagnosis of MRI is accurate and reliable,which should be widely promoted and applied in clinical practice.