妊娠早期出血患者常被转诊进行超声检查.此时出血可能与先兆流产有关.这些病例的主要问题是孕卵是否存活.在宫内的妊娠囊内能看到活的胚胎前,鉴别正常早期活胎与枯萎卵是困难的.作者企图对高分辨力实时扇形扫描仪在鉴别中的实用价值进行再评价,并决定在首次扫描时能否有供鉴别 Patients with early pregnancy bleeding are often referred for ultrasonography, when bleeding may be associated with threatened abortion, the main problem in these cases is whether or not the egg is alive, and the intrauterine gestational sac can be seen before the live embryo to identify normal early Live and withered eggs are difficult.The author attempts to re-evaluate the practical value of high-resolution real-time sector scanners in discriminating and to determine if there are any identifications available for the first scan