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Abstract：
These practice guidelines follow the mission of the World Association of Perinatal Medicine in collaboration with the Perinatal Medicine Foundation, bringing together groups and individuals throughout the world, with the goal of improving the ultrasound assessment of the fetal Central Nervous System (CNS) anatomy. In fact, this document provides further guidance for healthcare practitioners for the evaluation of the fetal CNS during the mid-trimester ultrasound scan with the aim to increase the ability in evaluating normal fetal anatomy. Therefore, it is not intended to establish a legal standard of care. This document is based on consensus among perinatal experts throughout the world, and serves as a guideline for use in clinical practice.
摘要：
这些实践指南遵循世界围产期医学协会与围产期医学基金会合作的使命，将世界各地的团体和个人聚集在一起，目的是改善胎儿中枢神经系统（CNS）解剖结构的超声评估。事实上,本文件为保健医生在妊娠中期超声扫描期间评估胎儿中枢神经系统提供了进一步的指导,旨在提高评估正常胎儿解剖结构的能力.因此,它无意建立法律护理标准。该文件基于世界各地围产期专家的共识，并作为临床实践中使用的指南。
