MRI在胎儿后颅窝池增宽疾病中的诊断价值  

The diagnostic value of MRI in diseases with widened fetal posterior cranial fossa pool

作　　者：王建涛[1] 常利名 李素荣[2] 杨新宇[1] 石丽莉[2] WANG Jiantao;CHANG Liming;LI Surong;YANG Xinyu;SHI Lili(Department of Radiology,Tangshan Gongren Hospital,Tangshan,Hebei Province 0630009,China;Department of Radiology,Tangshun Maternal and Child Health Hospital,Tangshan,Hebei Province 063000,China)

机构地区：[1]唐山市工人医院放射科,河北唐山063000 [2]唐山市妇幼保健院放射科,河北唐山063000

出　　处：《实用放射学杂志》2021年第6期997-999,1021,共4页Journal of Practical Radiology

摘　　要：目的探讨胎儿后颅窝池增宽类疾病的MRI征象及其诊断价值.方法回顾性收集彩色多普勒超声提示后颅窝池增宽且行MRI检查的95例胎儿影像学资料,总结各类后颅窝增宽类病变的MRI影像特点,与出生后检查或随访结果对照,分析MRI产前诊断的准确性.结果95例胎儿后颅窝池增宽,经MRI检查最终提示Dandy-Walker畸形(DWM)15例,2例误诊,应为Joubert综合征及Blake's囊肿(BPC);DWM变异型17例,3例误诊,2例应为BPC,1例应为Joubert综合征;BPC 10例,2例误诊,应为蛛网膜囊肿(AC)及DWM变异型;小脑发育不全(CH)2例;AC 29例;MCM 22例;MRI诊断准确率为92.6%.结论MRI可较准确诊断胎儿表现为后颅窝增宽的各种疾病,可为临床处置提供影像依据.Objective To analyze the MRI features in diseases with widened fetal posterior cranial fossa pool and its diagnostic value.Methods 95 cases of imaging data were retrospective collected,in which color Doppler ultrasound showed that the posterior cranial fossa pool was widened,and the MRI imaging features of various lesions in the widened posterior cranial fossa were summarized and compared with postnatal inspection or follow-up results,then the accuracy of MRI prenatal diagnosis was analyzed.Results Among 95 cases with posterior cranial fossa pool widened disease,MRI diagnosed 15 cases of Dandy-Walker malformation(DWM),in which 2 misdiagnosed cases should be Joubert syndrome and Blake*s pouch cyst(BPC);MRI diagnosed 17 cases of DWM variant type,in which 3 misdiagnosed cases,2 cases should be BPC and 1 case should be Joubert syndrome,MRI diagnosed 10 cases of BPC,in which 2 misdiagnosed cases should be arachnoid cyst(AC)and DWM variant type;MRI diagnosed 2 cases of cerebellar hypoplasia(CH);MRI diagnosed 29 cases of AC;MRI diagnosed 22 cases of MCM.The accuracy of MRI diagnosis was 92.6%.Conclusion Fetal diseases with widened posterior cranial fossa can be accurately diagnosed by MRI,which can provide imaging basis for clinical treatment.

关 键 词：胎儿 后颅窝 磁共振成像 

分 类 号：R714.5[医药卫生—妇产科学] R742[医药卫生—临床医学]