Harrington K, Armstrong V, Freeman J, Aquilina J, Campbell S
Department of Obstetrics and Gynaecology, Homerton Hospital, London, UK.
Ultrasound Obstet Gynecol. 1996 Nov;8(5):318-21. doi: 10.1046/j.1469-0705.1996.08050318.x.
The study was planned to determine the proportion of parents that wish to know the sex of their fetus at the 20-week anomaly scan, and to investigate our ability to diagnose correctly the sex of the fetus when undertaken as part of a routine scan. A total of 472 patients gave their informed consent. An attempt was made to identify the genitalia as part of the routine scan. No extra time was allowed to determine the sex of the fetus. Altogether 353 (74.7%) women wanted to know the sex, of which four (0.9%) wanted to know but did not want their partners to know. In 50 (10.6%) cases, it was not possible to determine the fetal sex in the time allowed. When the sex was identified, it was correct in 408 (96.7%) cases, and incorrect in 14 (3.3%) cases. Where the parents wanted to know the sex of the fetus, 24 (6.8%) scans were inconclusive, 319 (97%) were correctly identified, and ten (3%) were incorrectly identified (six male, four female). There were no terminations of pregnancy. The majority of prospective parents wish to know the sex of their child, and, in most cases, it is possible to determine the fetal sex at the time of the routine anomaly scan. During the time allowed, the fetal sex was undetermined in one in ten cases, and 3% were sexed incorrectly. If parents wish to know the gender of their fetus, it would appear reasonable to provide this information, provided that the parents are aware of the failure and error rates of sex identification using ultrasound.
该研究旨在确定在20周畸形扫描时希望知晓胎儿性别的父母比例，并调查在进行常规扫描时正确诊断胎儿性别的能力。共有472名患者给予了知情同意。在常规扫描过程中尝试识别胎儿生殖器。未额外留出时间来确定胎儿性别。总共有353名（74.7%）女性想知道胎儿性别，其中4名（0.9%）想知道但不想让伴侣知道。在50例（10.6%）中，在规定时间内无法确定胎儿性别。当确定胎儿性别时，408例（96.7%）正确，14例（3.3%）错误。在父母想知道胎儿性别的情况下，24例（6.8%）扫描结果不明确，319例（97%）正确识别，10例（3%）错误识别（6例为男性，4例为女性）。没有出现终止妊娠的情况。大多数准父母希望知道孩子的性别，而且在大多数情况下，在常规畸形扫描时能够确定胎儿性别。在规定时间内，十分之一的情况无法确定胎儿性别，3%的性别判断错误。如果父母希望知道胎儿的性别，在父母了解超声鉴别性别的失败率和错误率的情况下，提供这一信息似乎是合理的。
