孕妈妈有做过NT检查,也有做过多次扫描的,第一次扫描后被告知出去走动走动、吃点东西等。有时候来回三、四次后才做完这个检查。而很多孕妇不知道NT检查到底做的是什么,又能起到什么作用,也有人认为NT检查能筛查出所有的畸形胎儿,那到底NT是?
Pregnant mothers have had NT examination, also have made many scans, the first scan was told to go out, walk around, eat something. Sometimes it takes three or four times to complete the check. And many pregnant women don't know what the NT check is, and what it can do, and some people think NT screening can screen out all the deformed fetuses. Is that NT?
什么是NT?
NT即颈项透明层,指胎儿颈后皮下组织液内液体积聚的厚度,反映在超声声像图上,即为胎儿颈椎水平矢状切面上测量颈后皮肤至皮下软组织之间无回声层的最大厚度。
What is NT?
The transparent laxyer NT neck, refers to the thickness of the liquid accumulation of liquid within the subcutaneous tissue of fetal neck, reflected in the ultrasound image, is the maximum thickness between the carotid cervical sagittal section on the level of fetal skin to subcutaneous soft tissue echo free laxyer.
NT超声图 NT sonogram
NT检查的最佳时间?
NT的变化与孕周密切相关,规定测量其厚度的时间也很严格。在孕11-13周+6天时间段内进行。此时头臀长相当于45-84mm。11~13周+ 98%~100%可测量NT的厚度,而14周则降至11%。掌握检查时间,避免孕妇没有计划或错过做NT检查。注意:这里所说的孕周是根据末次月经计算出来的孕周,而不是早期B超上根据胎儿发育情况计算出来的孕周。
What is the best time to check NT?
The changes in NT are closely related to gestational age, and the time required to measure their thickness is very strict. They were performed within 11-13 weeks of gestation and +6 days. At this point, the rump length is equivalent to 45-84mm. The thickness of NT could be measured by 11~13 weeks + 98% ~ 100%, while 14 weeks decreased to 11%. Check the time and avoid pregnant women who do not plan or miss NT examinations. Note: the gestational age described here is baxsed on the gestational age calculated from the last menstrual period, rather than the gestational age calculated on the basis of fetal development during early B-mode ultrasonography.
NT检查的必要性?
排除孕早期即出现的大的结构畸形,NT检查是孕早期的一项超声筛查项目,也可以称得上是一次畸形小排查。孕期检查中,做NT检测很有必要,这是排除胎儿异常的第一步。
What is the need for NT testing?
Excluding large structural abnormalities in early pregnancy, NT screening is an ultrasound screening program in early pregnancy and can be called a minor investigation. In pregnancy, it is necessary to do NT testing, which is the first step in eliminating fetal abnormalities.
NT检查的有人认为NT检查能检查出所有的畸形胎儿?
不是。
NT检查是筛查NT检查是筛查,是早期发现胎儿异常的一种有效的影像学方法。厚度增加,只是发生胎儿异常的可能性增加。NT增厚越明显,胎儿异常机会就越高,异常程度也越严重。NT值正常,亦不能说明没有问题。值得一提的是,约80%--90%的NT异常胎儿是一过性病变,即如果胎儿没有任何染色体或心脏等问题,即便NT增厚也不代表任何问题。
NT增厚仅仅提示了需要进行下一步检查。当孕早期NT异常,应进行进一步检查,如进行相关染色体检查等,对染色体核型正常者,还需要密切追踪观察,排除有无先天性心脏发育异常及其他结构异常。具体相关检查需到产前门诊就诊咨询。NT检查好比我们目前的安检工作,而NT增厚就好比安检过程中发现的可疑人员,需要进一步排查。所以NT仅仅是间接诊断胎儿异常的一个标记。
NT's check that NT can detect all malformed fetuses?
No
NT screening is screening, and NT screening is an effective imaging technique for early detection of fetal abnormalities. Increased thickness only increases the likelihood of fetal abnormalities. The more obvious the thickening of NT, the higher the chance of abnormal fetal abnormalities, the more severe the abnormality. The normal NT value does not mean that there is no problem. It is worth mentioning that, about 80%--90% NT abnormal fetus is a transient lesion, that is, if the fetus does not have any chromosome or heart problems, even if the NT thickening does not mean any problems.
The NT thickening simply indicates the need for further examination. When early pregnancy, abnormal NT, should be further examined, such as related to chromosome examination, normal karyotype, also need to closely track observation, there is no exclusion of congenital heart abnormalities and other structural abnormalities. The specific related examination must go to the antenatal clinic consultation. The NT check is like our current security check, and the NT thickening is just like the suspect found during the security check and needs further investigation. Therefore, NT is only a marker for indirect diagnosis of fetal abnormalities.
一张图简单读懂NT检查的意义
做NT检查时孕妈妈需要注意什么?孕妈妈们在做NT检查之前唯一要注意的就是保持良好的心情,多和宝宝说话,虽然这时候宝宝还很小,但是宝宝依然可以感受到妈妈的爱。在接受NT检查时不需要特别的准备工作,常规饮食,无需憋尿,这点挺幸福的。因为这个时期已经有充盈的羊水,仪器可以借助羊水透声窗进行观察。如果检查当日有抽血化验等需空腹的项目,不妨先做完需空腹检查的项目,然后吃点东西,再进行NT检查,毕竟饿着肚子,自己的状态也不佳呀。
The NT examination of pregnant mothers need to pay attention to what? Before pregnant mothers in the NT examination only to pay attention to is to maintain a good mood, and baby talk, although this time the baby is still very small, but the baby can still feel the love of the mother. Do not need special preparations in an NT examination of routine diet, no need to hold back, this is happy. Because this period has been filled with amniotic fluid, the instrument can be carried out through the amniotic fluid through the sound window to observe. If the examination of the day there are blood tests, fasting items, you may wish to finish the fasting examination items, and then eat something, and then NT examination, after all, hungry, and their state is not good.
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