MRI diagnosis and analysis of 104 cases of fetal ventriculomegaly by ultrasonography
Author(s): LIU Cai-xia, YIN Shao-wei, CHEN Jing
Pages: 666-669
Year: 2008 Issue: 9
Journal: CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY
Keyword: Brain diseases; Cerebral ventricles; Magnetic resonance imaging; Ultrasonography; prenatal;
Abstract: Objective To evaluate the diagnostic value of MRI in the cases suspected of ventriculomegaly by prenatal uhrasonography.Methods 104 patients of suspected fetal ventriculomegaly (VM) diagnosed by uhrasonography were included from the Shengjing Hospital,China Medical University from March 2006 to October 2007.All cases were divided into 4 groups based on the standard of Gaglioti:10-12 mm(66 cases),13-15 mm(22 cases),16-20 mm(14 cases),and 21-25 mm(2 cases);they included 75 eases of single intracerebroventricular expansion and 29 eases of double intracerebroventricular expansion.All of them were subjected to MRI scan within 48 h of uhrasonographic examination to determine the prenatal diagnosis by MRI pregnancy outcomes.Results Among the 26 072 cases who received prenatal uhrasonography,104 cases (0.39%) were VM. (1) MRI detected 3 cases (5%) in 10-12 mm group:one ease of cerebellar hypoplasia,vascular malformation,chest and abdominal anomalies each; 5 cases(23%)in 13 -15 mm group:one case of agenesis of corpus callosum (ACC),cerebral hemorrhage,cerebral hemorrhage with cerebral meningocele,cerebral meningocele,intracranial mass meningocele each; 6 cases(43% )in 16 -20 mm group:4 cases of ACC,one case of intraventricular hemorrhage and ACC combined with ventricular hemorrhage each; 2 cases in 21-25 mm group:one case of ACC and intraventricular hemorrhage each.(2) MRI detected 4 eases(5%) among 75 unilateral VM cases and 12 eases (41%) among 29 bilateral VM eases.The differences were significant (P＜0.01).MRI diagnosis rate was 15.38% (16 cases).Follow-up of the outcomes of the pregnancy showed induction of 0labor in 15 cases (14%) all of which were the same as MRI results on autopsy,full-term delivery of 88 cases,of which all the neonates were healthy.Conclusions When the expansion width is above 16 mm or bilateral VM is suspected by ultrasonography,we suggest MRI examination to determine fetal central nervous system disease.
Pages: 666-669
Year: 2008 Issue: 9
Journal: CHINESE JOURNAL OF OBSTETRICS AND GYNECOLOGY
Keyword: Brain diseases; Cerebral ventricles; Magnetic resonance imaging; Ultrasonography; prenatal;
Abstract: Objective To evaluate the diagnostic value of MRI in the cases suspected of ventriculomegaly by prenatal uhrasonography.Methods 104 patients of suspected fetal ventriculomegaly (VM) diagnosed by uhrasonography were included from the Shengjing Hospital,China Medical University from March 2006 to October 2007.All cases were divided into 4 groups based on the standard of Gaglioti:10-12 mm(66 cases),13-15 mm(22 cases),16-20 mm(14 cases),and 21-25 mm(2 cases);they included 75 eases of single intracerebroventricular expansion and 29 eases of double intracerebroventricular expansion.All of them were subjected to MRI scan within 48 h of uhrasonographic examination to determine the prenatal diagnosis by MRI pregnancy outcomes.Results Among the 26 072 cases who received prenatal uhrasonography,104 cases (0.39%) were VM. (1) MRI detected 3 cases (5%) in 10-12 mm group:one ease of cerebellar hypoplasia,vascular malformation,chest and abdominal anomalies each; 5 cases(23%)in 13 -15 mm group:one case of agenesis of corpus callosum (ACC),cerebral hemorrhage,cerebral hemorrhage with cerebral meningocele,cerebral meningocele,intracranial mass meningocele each; 6 cases(43% )in 16 -20 mm group:4 cases of ACC,one case of intraventricular hemorrhage and ACC combined with ventricular hemorrhage each; 2 cases in 21-25 mm group:one case of ACC and intraventricular hemorrhage each.(2) MRI detected 4 eases(5%) among 75 unilateral VM cases and 12 eases (41%) among 29 bilateral VM eases.The differences were significant (P＜0.01).MRI diagnosis rate was 15.38% (16 cases).Follow-up of the outcomes of the pregnancy showed induction of 0labor in 15 cases (14%) all of which were the same as MRI results on autopsy,full-term delivery of 88 cases,of which all the neonates were healthy.Conclusions When the expansion width is above 16 mm or bilateral VM is suspected by ultrasonography,we suggest MRI examination to determine fetal central nervous system disease.
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