Prenatal ultrasound for diagnosing fetal intracranial arachnoid cyst and predicting outcomes
10.13929/j.issn.1003-3289.2025.03.005
- VernacularTitle:产前超声诊断胎儿颅内蛛网膜囊肿并预测其转归
- Author:
Guohui ZHANG
1
;
Lijuan SUN
1
;
Cuixia GUO
1
;
Yuanjie CUI
1
Author Information
1. 首都医科大学附属北京妇产医院北京妇幼保健院超声科,北京 100026
- Publication Type:Journal Article
- Keywords:
arachnoid cysts;
fetus;
ultrasonography,prenatal;
treatment outcome
- From:
Chinese Journal of Medical Imaging Technology
2025;41(3):372-376
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the value of prenatal ultrasound for diagnosing fetal intracranial arachnoid cyst(IAC)and predicting outcomes.Methods A total of 240 fetuses with IAC confirmed by fetal brain MR examination or clinical follow-up were retrospectively enrolled,and the prenatal ultrasonic manifestations were observed.The outcomes of pregnancy were recorded,and the neurological development and treatment after birth were regularly followed up,then the fetuses were classified into good outcome or poor outcome groups.Univariate and binary logistic regression were used to analyze clinical data and prenatal ultrasonic findings,and the impact factors of outcomes of fetal IAC were screened.Results Among 240 fetuses,IAC located in the supratentorial area in 192(192/240,80.00％)and in the infratentorial area in 48(48/240,20.00％)fetuses.The size of IAC was 0.3-6.2 cm,with an average of(1.4±0.9)cm.Single lesion was found in 230 fetuses(230/240,95.83％),while multiple lesions were detected in 10 fetuses(10/240,4.17％).IAC presented as thin-walled cystic echoes with clear intracranial boundaries and good intracapsular sound transmission in all 240 fetuses,including 150(150/240,62.50％)with simple IAC and 90(90/240,37.50％)complicated with intracranial or other system malformations.Totally 189 fetuses were delivered successfully,while 51 underwent induction of labor.The newborns were followed up to 6-84 months.Among 240 fetuses with IAC,171(171/240,71.25％)had good outcome and 69(69/240,28.75％)had poor outcome.The size,number of lesion and whether combined with malformations or not on prenatal ultrasound and gender were all independent impact factors of outcomes of fetal IAC(OR=1.558,6.323,0.911,2.662,all P＜0.05).Conclusion Prenatal ultrasound could accurately diagnose and predict the outcomes of fetal IAC.
