Analysis of CT Combined with High-frequency Ultrasound in Diagnosis and Reduction of Intussusception in Children
Objective To investigate the diagnostic value of CT combined with high-frequency ultrasound(HFUS)in children with intussusception,and analyze the influencing factors of reduction.Methods 110 children with suspected intussusception diagnosed and treated in our hospital from January 2019 to September 2022 were selected,81 of whom were clinically diagnosed as intussusception,29 of whom were clinically diagnosed as obturator hernia,acute appendix and other non intussusception.CT and HFUS examinations were performed to analyze the diagnostic value of CT combined with HFUS in children with intussusception.Air enema reduction was performed on children with intussusception.According to whether the reduction was successful or not,74 cases were divided into successful group and 7 cases into failure group,The influencing factors of reset failure were analyzed.ResultsThe ROC curve analysis showed that the area under the curve(AUC)of CT,HFUS,and CT combined with HFUS in diagnosing children's intussusception were 0.746,0.788,and 0.941,respectively.The sensitivity,specificity and accuracy of CT in the diagnosis of intussusception were 80.25%,68.97%and 77.27%respectively,and those of HFUS were 85.19%,72.41%and 81.82%respectively,which were significantly lower than those of CT combined with HFUS of 95.06%,93.10%and 94.55%(P<0.05).By single factor analysis,age,time from onset to admission,abdominal distension,blood stool volume and mass under X-ray were the influencing factors for reduction failure of intussusception in children(P<0.05);By binary logistic regression analysis,age<1 year old,large amount of bloody stool,and lobulated mass under X-ray were the risk factors for reduction failure of intussusception in children(P<0.05).Condusion CT combined with HFUS has high diagnostic value in children with intussusception;The reduction failure of intussusception in children is related to young age,large amount of bloody stool and lobulated mass under X-ray.
CTHigh Frequency UltrasoundInfantile IntussusceptionDiagnosisResetInfluence Factor