天气预报15天查询> 其他> 正常怀孕多少天b超可见卵黄囊

正常怀孕多少天b超可见卵黄囊

更新时间: 2020-11-04 00:00:00     

正常怀孕40天以后就会有卵黄囊生长。根据末次月经推算的预产期有50%不准确,需要妊娠早期超声确认或者校正,特别是妊娠11-13加6周胎儿测量CRL估计孕龄是最为准确的方法。怀孕大于等于14周,需要采用双顶径,头围,腹围和股骨长综合判断孕龄。如果妊娠22周前没有进行超声检查确定或者校正孕龄,单纯根据末次月经推算的预产期,称为日期不准确妊娠。

关键词: 正常 怀孕 多少 可见 卵黄

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-537321/ | 耗时:0.9444 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=537321 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=537321 LIMIT 0,1
select * from tbl_Articles_sphinx where id=537321 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1772122,214213,1856192,2785567,1077502,1904812,125665,142058,1277493,1046826,288222,2155212,2951772,1945137,1123112,1126736,866455,2684087,506452,1132545,1639199,1132509,2664403,1062038,1366477,1130332,1288293,1132817,3177858,1324140) ORDER BY field (ArticleID,1772122,214213,1856192,2785567,1077502,1904812,125665,142058,1277493,1046826,288222,2155212,2951772,1945137,1123112,1126736,866455,2684087,506452,1132545,1639199,1132509,2664403,1062038,1366477,1130332,1288293,1132817,3177858,1324140)