胎儿

Quantitative serum beta-HCG level may be positive in nonviable gestations since beta-HCG may persist in the serum for several weeks after fetal death.

妊娠停止血清β-HCG定量检查可为阳性，因为胎儿死亡后几周血β-HCG可以持续存在。

The outcome was usually normal in this population.

这组胎儿的后果通常是正常的。

Background: In order to the need of fetal growth, normal pregnancy induces a variety of cardiovascular adaptations.

研究背景：为了满足胎儿生长发育的需要，母体心血管系统发生一系列适应性变化。

Increased fetal nuchal translucency is associated with increased risk for congenital heart defects.

颈部半透明厚度的增加与胎儿心脏缺陷危险增加相关。

Objective To explore the changes and clinical significances of Tei index of fetuses with nuchal cord in late pregnancy.

目的 探讨晚期妊娠脐带绕颈时胎儿心肌作功指数Tei指数变化及临床意义。

Results 35 fetuses with increased nuchal translucency thickness had been identified.

目的 评价超声测量颈项透明层（nuchal translucency thickness，NT）在检出胎儿早期异常中的临床诊断价值。

Objective To assess the clinical diagnosis value by u1trasonographic measurement of nuchal translucency thickness in detecting abnormal fetuses.

目的 评价超声测量颈项透明层（nuchal translucency thickness，NT）在检出胎儿早期异常中的临床诊断价值。

MethodsThe thickness of nuchal skin of 900 normal fetal was measured by abdominal ultrasound with 7.5 MHz probe.

结果孕 2 7周前正常胎儿颈项皮肤只能显示全层；≥ 2 7周可显示表皮真皮层和皮下组织层。厚度范围：( 1.18± 0 。0 5 )mm ( 10周)～( 6.0 1± 0 。46)mm ( 4 0周)。

Methods Fetal nuchal translucency was measured between 11～14 weeks of gestation with serial follow-up ultrasound examinations until neonate.

目的 评价超声测量颈项透明层（nuchal translucency thickness，NT）在检出胎儿早期异常中的临床诊断价值。

All but one (92.3%) of the trisomy 21 fetuses with absent nasal bone had increased nuchal translucency .

几乎全部，除一例外(92.3%)的21-三体综合症胎儿鼻骨缺席合并颈部半透明厚度增加。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。