四维彩超 Why Need to Have 4D Ultrasound Screening During Pregnancy

体检是孕妈孕期的必备功课，许多孕妈怀孕到一定的时期医生都会让孕妈去做四维彩超，或许有些孕妈会觉得平时已经定期去做检查了，四维彩超就没必要再去做了，可是在生下一个不健康的宝宝后，悔不当初。

有些孕妈很疑惑，什么是四维彩超呢?在孕期为什么一定要去做四维彩超，它的作用有哪些?在去做彩超的时候要注意哪些呢?下面，小编就来为大家详细介绍一下。

Some pregnant women believe that it is unnecessary to have ultrasound screening if they follow routine prenatal checkups. However, ultrasound screening plays an irreplaceable and significant role in pregnancy, which should be valued by parents.

So, what’s 4D Ultrasound? What’s the function and what to be noticed? We will bring you details as follow. 

四维彩超的全称是四维彩色超声诊断仪，是世界上顶尖的彩色超声设备。四维彩超能够表面成像，更加清晰的筛查胎儿的四肢发育是否畸形，脑膜膨出，是否唇腭裂、脊柱裂等先天畸形，及早发现并及早做出解决方案。

4D ultrasound also called four-dimensional color Dopplor ultrasound diagnostic apparatus, which is the world's top color ultrasound equipment. It possesses surface image to high solution screening of deformity of fetal limbs, meningeal bulging, cleft lip and palate, spina bifida and other congenital malformations, which help to detect and take solutions earlier.

• 确定预产期

• Confirm the Expected Date of Delivery

一般在孕妇20周左右做四维彩超检查，因为这个时候的彩超能比较准确地推算预产期。

Generally, the expected date of delivery can be estimated accurately by 20 weeks’ scan.

• 查看胎儿的活动

• Observe Fetal Movement

可以检查到胎儿在宫内是否缺氧，肢体运动、胎儿的吞咽动作等，能够很好的看到胎儿在母体内的活动状况。 

It can clearly view the fetal movement inside your womb, such as fetal distress, swallowing, etc.

• 监测胎儿生长发育

• Monitor Fetal Growth and Development

医生解释，检测胎儿发育是根据测量胎儿的数值来判断，如果低于第10百分位，或高于第90百分位的话，胎儿就是不正常的了。

According to doctor, the detection of fetal development is based on  fetal values. Lower than the 10th percentile or higher than the 90th percentile is deemed to be abnormal.

• 胎儿是否畸形

• Deformity or Not

彩超检查是发现胎儿畸形的一个重要手段。一旦发现胎儿畸形，就可以及时终止妊娠。通常孕妇在妊娠22-26周做彩超是可以筛查胎儿是否畸形的，因为这个时段的胎儿各个器官都已经发育成型，比较容易看出有没有畸形，所以做彩超检查十分重要。

Ultrasound scan is an important mean of detecting fetal malformations. If any malformation is detected, the gestation can be terminated in time. Usually 4D anomaly scan is arranged during 22-26 weeks, by then organs are developed and formed.

• 测量羊水量

• Measure Amniotic Fluid Volume

彩超可以比较准确地测量羊水量。母体羊水量的多少对胎儿的发育非常的重要，因为羊水太多或者太少都会导致胎儿畸形。在彩超中也可以清楚地了解胎盘的位置是否正常，胎盘是否有血管瘤的存在，是否成熟等，可以明确地诊断出前置胎盘，胎盘早剥等危险情况的存在。

Color ultrasound can measure amniotic fluid volume accurately. It is critical to the fetal development as for too much or too little water would cause fetal malformation. However, ultrasound can show clearly the position of placenta, placenta hemangiomas, and its maturity etc., meanwhile, it can also diagnose of placenta previa and placental abruption as well.

1、一般整个孕期做三次四维彩超，怀孕的22~26周做四维彩超最佳，但是具体时间也是因人而异的。

1, Generally speaking, there should be three timings for ultrasound scan, and it’s better to be have anomaly scan during 22-28 weeks. But, it varies from person to person.

2、孕妇在22-26周的阶段，做四维彩超不需要憋尿，也不需要空腹。孕妇只需要在规定的时间内到医院进行检查即可。

2, For 4D anomaly scan in 22-26 weeks, you don’t have to hold your urine or fasting, just make it according to your schedule.

3、在四维彩超检查前，孕妇最好将自己的上衣和裤子分开穿。在四维彩超的检查中，医生主要是通过检查的仪器，对胎儿当前的面部发育，还有心脏，大脑，脊椎等有没有存在发育缺陷的情况进行一个检查。

3, Before the scan, you should better separate your outfit by tops and pants. During the scan, the doctor mainly checks fetal’s current facial development, as well as the present development of heart, brain, and spine.

4、做四维彩超时，孕妈妈一定要保持良好的心态，整个检查过程大概会持续20分钟左右。

4, We encourage our mothers to stay in a fine mindset, as the whole process will last about 20 minutes.