Prenatal MR diffusion-weighted imaging in a fetus with hemimegalencephaly

被引：0
作者：
Ronit Agid
Sivan Lieberman
Michael Nadjari
John M. Gomori
机构：
[1] Hadassah University Hospital,Division of Neuroradiology, Department of Radiology
[2] Hadassah University Hospital,Department of Obstetrics and Gynecology
来源：
Pediatric Radiology | 2006年 / 36卷
关键词：
Fetus; Hemimegalencephaly; MRI; Diffusion-weighted MRI;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We report a case of hemimegalencephaly diagnosed by prenatal MRI with an emphasis on its appearance on diffusion-weighted images. This case shows that in this condition the enlarged hemisphere may show restricted diffusion on prenatal MRI. In our opinion, this finding may result from a combination of increased cellularity and advanced myelination in the affected hemisphere. Restricted diffusion is an additional valuable indicator in the analysis of the fetal brain.
引用
收藏
页码：138 / 140
页数：2
相关论文
共 42 条
[1]  
Barkovich AJ(1996)Neuroimaging of focal malformations of cortical development J Clin Neurophysiol 13 481-494
[2]  
Kuzniecky RI(2002)Hemimegalencephaly: part 1. Genetic, clinical, and imaging aspects J Child Neurol 17 373-384
[3]  
Flores-Sarnat L(2004)Fetal brain imaging: a comparison between magnetic resonance imaging and dedicated neurosonography Ultrasound Obstet Gynecol 23 333-340
[4]  
Malinger G(2004)Hemimegalencephaly misdiagnosed as a congenital brain tumor by fetal cerebral ultrasonography Prenat Diagn 24 257-259
[5]  
Ben-Sira L(1986)MR imaging of intravoxel incoherent motions: application to diffusion and perfusion in neurologic disorders Radiology 161 401-408
[6]  
Lev D(1999)Diffusion-weighted MR imaging in acute stroke: theoretic considerations and clinical applications AJR 173 1459-1467
[7]  
Nishimaki S(1965)Spin diffusion measurements: spin echoes in the presence of a time dependent field gradient J Chem Phys 42 288-292
[8]  
Endo M(1994)Time-dependent diffusion of water in a biological model system Proc Natl Acad Sci U S A 91 1229-1233
[9]  
Seki K(2003)MR diffusion-weighted imaging in a case of West Nile virus encephalitis Neurology 61 1821-1823
[10]  
Le Bihan D(2000)Comparison of CT scan and MRI findings in the diagnosis of Japanese encephalitis J Neurol Sci 174 3-8
12345