IFIR联合2D-FIESTA序列对儿童胡桃夹综合征的诊断价值  

The Diagnostic Value of IFIR Combined with 2D-FIESTA Sequences for Nutcracker Syndrome in Children

作　　者：陈欣桐 黄伟 夏正坤 王忍 王美秋 CHEN Xintong;HUANG Wei;XIA Zhengkun(School of Medical Imaging,Xuzhou Medical University,Xuzhou,Jiangsu Province 221004,P.R.China)

机构地区：[1]徐州医科大学医学影像学院,221004 [2]东部战区总医院放射诊断科,南京210002 [3]东部战区总医院儿科,南京210002

出　　处：《临床放射学杂志》2021年第9期1775-1778,共4页Journal of Clinical Radiology

摘　　要：目的探讨流入反转恢复序列(IFIR)联合二维快速平衡稳态进动(2D-FIESTA)序列定量参数对儿童胡桃夹综合征(NCS)的诊断价值。方法搜集因疑诊NCS行磁共振IFIR及FIESTA序列检查的59例儿童患者的图像及临床资料,根据临床诊断将患者分为NCS组与非NCS组。测量肠系膜上动脉与腹主动脉的夹角、左肾静脉于近肾门处及夹角处的内径和截面积,并计算内径和截面积的比值,采用ROC曲线分析夹角、内径比值和截面积比值对NCS的诊断效能。结果排除合并其他泌尿系统疾病的患者15例,最终NCS组20例,非NCS组24例。夹角、内径比值和截面积比值的曲线下面积分别为0.852、0.837、0.856;分别取临界值35.1°、3.74、2.84,其敏感性分别为70%、90%、65%,特异性分别为87.5%、70.8%、91.7%。夹角联合内径比值、夹角联合截面积比值的曲线下面积分别为0.898、0.954,其敏感性分别为90%、80%,特异性分别为88.3%、100%。结论IFIR联合2D-FIESTA序列定量参数对儿童NCS均具有诊断价值,其中夹角和截面积比值联合诊断的准确性最高。Objective To investigate the diagnostic performance of the quantitative parameters of IFIR combined with 2 D-FIESTA sequences for nutcracker syndrome(NCS)in children.Methods A total of 59 pediatric patients suspected for NCS who were underwent MRI examination using IFIR and FIESTA sequences at our institution were enrolled as well as their clinical date and MRI images.The patients were divided into NCS group and non-NCS group according to the clinical diagnosis.The angle between superior mesenteric artery and abdominal aorta,the diameter and the cross-sectional area of left renal vein at hilar portion/aortomesenteric portion were measured,the ratios of diameter and cross-sectional area were calculated.ROC curves were established to analyze the diagnostic efficiency of the angle,diameter ratio and cross-sectional area ratio for NCS.Results 15 patients were excluded for other urinary diseases,20 cases were included in NCS group and 24 cases in non-NCS group.The AUC of the angle,diameter ratio and cross-sectional area ratio were 0.852,0.837 and 0.856,with corresponding cut-off values of 35.1°,3.74 and 2.84,sensitivity of 70%,90%and 65%,specificity of 87.5%,70.8%and 91.7%,respectively.The AUC of both angle and diameter ratio,angle and cross-sectional area ratio were 0.898 and 0.954,the sensitivity were 90%and 80%,and the specificity were 88.3%and 100%,respectively.Conclusion The quantitative parameters of IFIR combined with 2 D-FIESTA sequences have significant diagnostic value for NCS in children,the diagnostic accuracy of angle combined with cross-sectional area ratio is the highest.

关 键 词：胡桃夹综合征 儿童 左肾静脉 流入反转恢复序列 快速平衡稳态进动序列 

分 类 号：R445.2[医药卫生—影像医学与核医学] R726.9[医药卫生—诊断学]