颈项部透明层厚度(异常标准).doc

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1、腹围（cm）孕龄（周）（平均值）腹围（cm）孕龄（周）（平均值）10.015.623.527.710.516.124.028.211.016.524.528.711.516.925.029.212.017.325.529.712.517.826.030.113.018.226.530.613.518.627.031.114.019.127.531.614.519.528.032.115.020.028.532.615.520.429.033.116.020.829.533.616.521.330.034.117.021.730.534.617.522.231.035.

2、118.022.631.535.618.523.132.036.119.023.632.536.619.524.033.0.37.120.024.533.537.620.524.934.038.121.025.434.538.721.525.935.039.222.026.335.539.722.526.836.040.223.027.336.540.8孕周95%可信限（周）孕龄（周）95%可信限（周）12—18+-1.930—36+-3.018—24+-2.036—42+-2.524—30-2.2胎儿腹围与孕周的关系颈项部透明层厚度（异常标准）10W≥1.8mm11

3、W≥1.9mm12W≥2.1mm13W≥2.2mm10W—13W≥2.5mm14W—22W≥6.0mm-2-胎儿胸围与胎龄的关系12周胸围：6.43厘米16周胸围8.43厘米20周胸围11.71-12.7厘米24周胸围14.9-16.4厘米28周胸围17.37厘米32周胸围22.3厘米36周-40周胸围23.05-24.32厘米双顶径测值与孕龄关系股骨测值与孕龄关系平均值（cm）------------------------------孕周-------------------------------------------平均值2.52--------------

4、------------------------------13----------------------------------------------1.172.83---------------------------------------------14----------------------------------------------1.383.23---------------------------------------------15----------------------------------------------1.743.6

5、2----------------------------------------------16----------------------------------------------2.103.97----------------------------------------------17-----------------------------------------------2.524.25----------------------------------------------18---------------------------------

6、---------------2.714.52----------------------------------------------19-----------------------------------------------3.034.88-----------------------------------------------20-------------------------------------------------3.355.22----------------------------------------------21-------

7、---------------------------------------3.645.45------------------------------------------------22----------------------------------------------3.82-5.80-----------------------------------------------23----------------------------------------------4.216.05-----------------------