Prenatal ultrasound graded management of Sylvian fissure for diagnosing fetal lissencephaly
10.13929/j.issn.1003-3289.2025.06.003
- VernacularTitle:基于产前超声外侧裂分级管理方法诊断胎儿无脑回畸形
- Author:
Xuelin LIU
1
;
Lingyu SUN
;
Chunhong YIN
;
Shengli LI
Author Information
1. 青岛妇女儿童医院妇产超声科,山东青岛 266034
- Publication Type:Journal Article
- Keywords:
fetus;
lissencephaly;
ultrasonography;
Sylvian fissure
- From:
Chinese Journal of Medical Imaging Technology
2025;41(6):866-870
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the value of prenatal ultrasound graded management of Sylvian fissure for diagnosing fetal lissencephaly.Methods Totally 39 fetuses with MRI diagnosed lissencephaly who underwent prenatal ultrasound examination were retrospectively enrolled and divided into non-graded management group(n=20)and graded management group(n=19)according to prenatal ultrasound examination before or after the application of prenatal ultrasound graded management of Sylvian fissure(i.e.prenatal ultrasound routine screening for fetal Sylvian fissure morphology).The diagnosis of prenatal ultrasound were compared and analyzed between groups,and the diagnostic value of graded management was evaluated.Results Among 20 fetuses in non-graded management group,prenatal ultrasound showed lissencephaly in 4 fetuses,but only other structural abnormalities in 16 fetuses.Then the latter were re-evaluated based on prenatal ultrasound graded management of Sylvian fissure,among which 4 fetuses could not be evaluated since not standard ultrasonic section,2 fetuses with severe hydrocephalus and Sylvian fissure could not be seen,while Sylvian fissure morphology did not match the corresponding gestational week in 4 fetuses,and type Ⅰ(no platform type)and type Ⅴ(Z-shaped)were noticed in 5 and 1 fetus,respectively.In graded management group,prenatal ultrasound indicated 15 fetuses with lissencephaly,including Sylvian fissure morphology did not match the corresponding gestational week in 6 fetuses,type Ⅰ(no platform type),type Ⅲ(linear type)and type Ⅴ(Z-shaped)were detected in 7,1 and 1 fetus,respectively,while no clear diagnosis was obtained in 4 fetuses.Prenatal ultrasound detection rate of fetal lissencephaly in graded management group(15/19,78.95％)was significantly higher than that in non-graded management group(4/20,20.00％)(P＜0.01).Conclusion Based on graded management of Sylvian fissure could improve the efficiency of prenatal ultrasound for diagnosing fetal lissencephaly.
