目的探讨医院产前超声检查中应用知情同意书的价值。方法对2002年1月-2010年1月经产前超声常规筛查并分娩出生缺陷儿(均为基层医院常规超声筛查难以显示或无法诊断的先天性异常)的产妇,按实行知情同意前后分为两组:实施前的有21例(A组),实施后的有19例(B组),比较两组出生缺陷儿产妇对产后结果的反映情况。结果 B组产妇对产前超声筛查理解13例,可以理解4例,难以理解2例;A组理解3例,可以理解5例,难以理解13例,两组理解程序差异有统计学意义(Z=-3.741,P=0.000)。结论知情同意书是产前超声检查过程中孕妇对医方理解及对孕妇负责的必要手段。 Objective To investigate the value of informed consent in prenatal ultrasound examination in hospitals. Methods From January 2002 to January 2010, prenatal ultrasound screening and birth defects in children (both primary hospital screening by conventional ultrasound is difficult to show or can not diagnose congenital abnormalities) of the mother, according to the implementation of informed consent before and after the points In two groups, there were 21 patients (group A) before implementation and 19 patients (group B) after implementation. The postpartum outcomes were compared between the two groups of birth-defect mothers. Results B group of maternal understanding of prenatal ultrasound screening in 13 cases, 4 cases can be understood, it is difficult to understand in 2 cases; A group of 3 cases, 5 cases can understand, difficult to understand 13 cases, two sets of procedures to understand the difference was statistically significant ( Z = -3.741, P = 0.000). Conclusion The informed consent form is necessary for pregnant women to understand the doctor and be responsible for pregnant women during the prenatal ultrasound examination.