Davila Ivan, Moscardo Isabel, Yepez Mayel, Sanz Cortes Magdalena
*Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas †Department of Obstetrics & Gynecology, Dr. Jose Eleuterio Gonzalez University Hospital, School of Medicine, Universidad Autonoma de Nuevo Leon, Monterrey, Mexico ‡Department of Obstetrics & Gynecology, Clinic Hospital of Valencia. University of Valencia, Spain.
Clin Obstet Gynecol. 2017 Sep;60(3):656-667. doi: 10.1097/GRF.0000000000000307.
Fetal brain ultrasound remains as the mainstay for screening fetal intracranial anatomy. One of its main advantages is the availability of 3 dimensional and other ultrasound modalities for a better understanding of fetal neurodevelopment. Neurosonography is performed when findings, suggestive of an abnormality, are present on a screening ultrasound or if a high-risk situation of brain injury is present. This technique offers the use of complementary imaging planes, axial, coronal and sagittal, and the ability to image intracranial anatomy from the transabdominal and transvaginal approaches. Fetal brain magnetic resonance imaging is more sensitive than ultrasound. As an adjunctive imaging modality, magnetic resonance imaging offers additional sequences to complete the information on neurodevelopment from different perspectives, such as brain metabolism, microstructure, and connectivity.
胎儿脑部超声仍然是筛查胎儿颅内解剖结构的主要手段。其主要优点之一是可利用三维及其他超声模式，以便更好地了解胎儿神经发育情况。当筛查超声发现提示异常的表现，或存在脑损伤的高危情况时，需进行神经超声检查。这项技术可使用轴向、冠状面和矢状面等辅助成像平面，还能从经腹和经阴道途径对颅内解剖结构进行成像。胎儿脑磁共振成像比超声更敏感。作为一种辅助成像方式，磁共振成像可提供额外序列，从不同角度完善有关神经发育的信息，如脑代谢、微观结构和连通性等。
