摘要
胎儿后颅窝区结构发育情况是常规产前检查的重要内容,产前准确诊断是产后干预及治疗的关键。MRI较超声可以更全面、直观地显示后颅窝区形态特征及细微结构,通过信号强度的差异辨别病灶的性质,并且能够进一步完善甚至更正超声的诊断。目前MRI已成为产前监测胎儿后颅窝区结构发育情况的主要手段,特别是三维MRI重组、扩散张量成像、扩散张量纤维束成像、磁共振波谱成像皆可提供更丰富的胎儿后颅窝区结构信息。就MRI对胎儿后颅窝区畸形产前诊断的应用予以综述。
Assessing development of fetal posterior fossa is an important routine pregnancy examination, and the accurate antenatal diagnosis is essential for postnatal intervention and treatment. Compared with ultrasound, MR imaging provides more comprehensive and visual morphological characteristics of subtle structures in the posterior fossa. MRI can distinguish different lesions by signal intensity, and can improve or correct the diagnosis based on ultrasound. So far MRI has become a main tool for prenatal monitoring of the development of fetal posterior fossa. Three dimensional recombination of magnetic resonance imaging, diffusion tensor imaging, diffusion tensor tractography, and magnetic resonance spectroscopy can particularly provide abundant information of the fetal posterior fossa structure. In this review, we reviewed the current clinical applications of MRI in prenatal diagnosis of fetal posterior fossa malformation.
作者
施洋
张国福
SHI Yang;ZHANG Guofu(Department of Radiology,Obstetric and Gynecology Hospital,Fudan University,Shanghai 200011,China)
出处
《国际医学放射学杂志》
北大核心
2018年第6期690-695,共6页
International Journal of Medical Radiology
关键词
胎儿
后颅窝
畸形
磁共振成像
Fetal
Posterior fossa
Anomalies
Magnetic resonance imaging
