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超声检查对肠系膜上动脉综合征的诊断价值

Value of ultrasonography in diagnosis of superior mesenteric artery syndrome
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摘要 目的筛选常规超声、口服胃窗造影剂超声及两者联合对肠系膜上动脉综合征(SMAS)的诊断标准并比较其诊断价值。方法连续性纳入2020年2月至2022年2月因不明原因腹痛、腹胀、恶心、呕吐、反胃、体质量下降等原因来中山大学附属第六医院就诊,临床疑诊SMAS行超声检查的患者51例。常规超声记录腹主动脉与肠系膜上动脉之间夹角(AMA)、腹主动脉与肠系膜上动脉之间距离(AMD)。口服胃窗造影剂超声记录腹主动脉与肠系膜上动脉夹角内十二指肠内径(D1)、夹角前十二指肠内径(D2)及D2/D1。回顾性分析所有超声检查资料,以对比增强计算机断层扫描(CECT)及上消化道钡餐作为诊断金标准,应用受试者工作特征(ROC)曲线分析并获得常规超声及口服胃窗造影剂超声的诊断指标,比较常规超声、口服胃窗造影剂超声及两者联合诊断SMAS的诊断价值。结果根据ROC曲线筛查出常规超声诊断SMAS的指标为:AMA≤16°[曲线下面积(AUC)=0.806]、AMD≤3.3 mm(AUC=0.685);口服胃窗造影剂超声诊断SMAS的指标为:D1≤5.5 mm(AUC=0.849)、D2≥19 mm(AUC=0.725)、D2/D1≥2.9(AUC=0.884)。常规超声、口服胃窗造影剂超声及两者联合分别以AMA≤16°或AMD≤3.3 mm、D2/D1≥2.9及AMA≤16°或AMD≤3.3 mm且D2/D1≥2.9为诊断标准,三者诊断SMAS的敏感度分别为95.2%、85.7%和85.7%,特异度分别为53.3%、83.3%和93.3%,准确性分别为70.6%、84.3%和90.2%,AUC分别为0.743、0.845和0.895。结论常规超声联合口服胃窗造影剂超声可作为临床诊断SMAS的有效方案。 Objective To explore the diagnostic criteria of conventional ultrasound(US),oral contrast US,and their combination for superior mesenteric artery syndrome(SMAS)and compare their diagnostic value in this disease.Methods Fifty-one patients who visited the Sixth Affiliated Hospital of Sun Yat-sen University from February 2020 to February 2022 for unexplained abdominal pain,abdominal distension,nausea,vomiting,regurgitation,and loss of body mass and who underwent ultrasonography for clinically suspected SMAS were consecutively included.The angle between the abdominal aorta(AO)and the superior mesenteric artery(AMA)and the distance between the AO and the superior mesenteric artery(AMD)were recorded by conventional US.The duodenal internal diameter(D1)within the angle between the AO and the superior mesenteric artery,the duodenal internal diameter(D2)in front of the angle,and D2/D1 ratio were recorded by oral contrast US.All ultrasound data were analyzed retrospectively,and contrast-enhanced computed tomography(CECT)and barium meal examination were used as the gold standard of diagnosis.The diagnostic indexes of conventional US and oral contrast US were analyzed and obtained by receiver operating characteristic(ROC)curve analysis,and their diagnostic value was compared.Results According to ROC curve analysis,the indexes of conventional US for diagnosis of SMAS were AMA≤16°(area under the curve[AUC]=0.806)and AMD≤3.3 mm(AUC=0.685).The diagnostic indexes of oral contrast US for SMAS were D1≤5.5 mm(AUC=0.849),D2≥19 mm(AUC=0.725),and D2/D1 ratio≥2.9(AUC=0.884).The diagnostic criteria of conventional US,oral contrast US,and their combination for SMAS were AMA≤16°or AMD≤3.3 mm,D2/D1≥2.9,and AMA≤16°or AMD≤3.3 mm and D2/D1≥2.9,respectively;their sensitivity,specificity,and accuracy for diagnosis of SMAS were 95.2%,53.3%,and 70.6%for conventional US,85.7%,83.3%,and 84.3%for oral contrast US,and 85.7%,93.3%,and 90.2%for their combination.Conclusion Conventional US combined with oral contrast US is an effective solution for clinical diagnosis of SMAS.
作者 蒋清凌 覃斯 胡美玉 谢佩怡 刘广健 Qingling Jiang;Si Qin;Meiyu Hu;Peiyi Xie;Guangjian Liu(Department of Medical Ultrasound,the Sixth Affiliated Hospital,Sun Yat-sen University,Guangzhou 510655,China;Department of Medical Imaging,the Sixth Affiliated Hospital,Sun Yat-sen University,Guangzhou 510655,China)
出处 《中华医学超声杂志(电子版)》 CSCD 北大核心 2023年第11期1174-1180,共7页 Chinese Journal of Medical Ultrasound(Electronic Edition)
关键词 肠系膜上动脉综合征 常规超声 口服胃窗造影剂超声 诊断 Superior mesenteric artery syndrome Conventional ultrasound Oral contrast ultrasound Diagnosis
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