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Doctor insights on: Ultrasound Evaluate Fetal Growth

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What is the definition or description of: ultrasound to evaluate fetal growth?

What is the definition or description of: ultrasound to evaluate fetal growth?

32-36 week scan.: A third trimester sonogram can help evaluate fetal growth if previous sonograms have established the due date with accuracy. Fetal biometry and anatomy is reviewed at each such scan. Many intestinal and urological anomalies can be thus detected, as they only show up in the third trimester. ...Read more

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Dr. Michael Gabor
2,286 doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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What is the definition or description of: Fetal growth retardation?

What is the definition or description of: Fetal growth retardation?

IUGR: A more accurate term is Intrauterine Growth Restriction, which refers to restricted fetal growth due to decreased blood flow to the placenta in the uterus. ...Read more

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What happens if baby drops from fetal growth percentile in 4 weeks but is still within the 10 and 90%? Is that a reason for concern?

What happens if baby drops from fetal growth percentile in 4 weeks but is still within the 10 and 90%? Is that a reason for concern?

No concern: The ultrasound measurements can vary from one test to the next. In the last month or two of pregnancy, ultrasound "guesses" about baby's size and weight can be off by quite a bit. It is not perfect technology. As long as the baby does not drop below the 10th percentile it should be fine. It sounds like you are being followed closely, which is good. Good luck. ...Read more

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If there are similar patterns in fetal growth before14 wks, then why would a dr. Say that u could really be11wks or13wks? If u measure 12wk, r u really?

If there are similar patterns in fetal growth before14 wks, then why would a dr. Say that u could really be11wks or13wks? If u measure 12wk, r u really?

Measurement error: Dating a pregnancy by ultrasound relies on measuring the length of specific structures. There is some variability in the normal range of size of these structures and some variability in the ability of the ultrasound to identify and measure this correctly. Thus there will be error in the "guess" of the age of the pregnancy. In the 2nd trimester, that error is about +/- 2 weeks. ...Read more

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Where do I go to find most common stages of fetal growth and development?

Where do I go to find most common stages of fetal growth and development?

There's an app, also: http://www.babycenter.com/pregnancy-week-by-week. It'd be good if all women of child-bearing age took daily Folate (folic acid) supplements, protected themselves from " the flu", planned their pregnancies, knew that 4 standard alcoholic drinks = a binge in women & understood that the fetal brain & spinal cord start forming at 3 weeks & other organs between 3- 10 weeks after conception. ...Read more

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What causes fetal growth restriction?

What causes fetal growth restriction?

MF/placental factors: Maternal-fetal and placental etiologies can all cause fetal growth restriction. Severa fetal syndromes can lead to fgr (e.g. Down, patau, triploidy, edwards, noonan's, digeorge). Multifetal pregnancies are at increased risk for fgr; this can result in fetal demise, fetal brain injury, cerebral palsy or even normal outcomes in non-syndromic cases. Placental infarcts, hypertension, lupus: culprits. ...Read more

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Can sneezing a lot effect fetal growth?

Unlikely: Unless it keeps the infant up all often for a long time, it would not affect growth. But you should really talk to the pediatrician about this. ...Read more

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Will I restrict fetal growth if I wear tight fitting clothes?

Will I restrict fetal growth if I wear tight fitting clothes?

Nope!: Tight-fitting clothes have nothing to do with fetal growth restriction. Only if you diet to fir into the tight clothes you can cause poor fetal growth. ...Read more

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6 weeks pregnant & have lost all symptoms. High-risk pregnancy with possible slow fetal growth according to OB. Am I facing the loss of this baby?

6 weeks pregnant & have lost all symptoms. High-risk pregnancy with possible slow fetal growth according to OB. Am I facing the loss of this baby?

Unknown: In general we can not use a lack of negative symptoms as a predictive tool for pregnancy outcome. You are very early in pregnancy. The way to determine if things are ok is to see your doctor. They can do a sonogram to confirm a live intrauterine pregnancy. ...Read more

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Fetal age due to LMP should be 7.2 but ultrasound after spotting showed the gestational age of 6.5 with flicker. normal or can be some growth issue. ?

Fetal age due to LMP should be 7.2 but ultrasound after spotting showed the gestational age of 6.5 with flicker. normal or can be some growth issue. ?

Maybe?: Most women unless they are extraordinarily regular are not good at identifying their LMP. Also, of all the tests in medicine, ultrasounds are the most operator-dependent. Have the most experienced person in your area perform the test and interpret for you. Best Wishes! ...Read more

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In what age we can distinguish sex of the fetus in ultrasound?

In what age we can distinguish sex of the fetus in ultrasound?

13 Weeks: Although occasionally the sex of the fetus can be discerned by week 11, ultrasounds done after the 13th week are 95-100% accurate in identifying the sex of the fetus... That is, assuming there is no malformation of the genitals. Good luck! ...Read more

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Can 13 week fetus be mistaken in ultrasound as a 9 week fetus?

Can 13 week fetus be mistaken in ultrasound as a 9 week fetus?

NO not in my office: Either your dates are off or there is something wrong with the pregnancy, at 13 weeks the margin of error is 5-6 days at the most either way. ...Read more

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Does ultrasounds give fetal age or gestionation age?

Does ultrasounds give fetal age or gestionation age?

Gestational age: Ultrasounds factor in the manner in which we 'date' pregnancies and they are basing analysis of your baby's growth against all babies of the same age. Hope that helps! ...Read more

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Can a fetus that shows at the ultrasound 8 weeks can actually be 14 weeks and the ultrasound to show more?

Don't completely: understand the question, but a normal 14 week fetus could never be mistaken for an 8 week gestation. ...Read more

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Doppler ultrasound safe for fetus?

Doppler ultrasound safe for fetus?

Doppler ultrasound: A doppler ultrasound is used to measure flow. It uses sound waves and doesn't hurt the fetus at all. ...Read more

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When are you able to see a fetal heartbeat on an ultrasound?

When are you able to see a fetal heartbeat on an ultrasound?

Varies: On transvaginal ultrasound fetal heart activity can be seen as early as 5.5 weeks but more typically after 6 weeks and always after 7 weeks in live pregnancies. In very early fetuses, on trans-abdominal sono early fetal heart visualization is complicated by uterus position, large patient size, and bladder filling. ...Read more

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Irregular heartbeat in a fetus on ultrasound? Shuoldnt it be treated?

Irregular heartbeat in a fetus on ultrasound? Shuoldnt it be treated?

Depends: There are some fetal cardiac arythmias that needs treatment while in utero, but not all of them. It is recommended to discuss this problem with a maternal fetal medicine specialist that will provide all the necessary info. ...Read more

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Can you find out if your fetus has cystic kidney disorder by ultrasound?

Can you find out if your fetus has cystic kidney disorder by ultrasound?

Absolutely!: A center competent in prenatal sonography should detect ~90% of renal cystic lesions. ...Read more

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My unborn fetus had a marker on a ultrasound echo focus but everything else was good?

My unborn fetus had a marker on a ultrasound echo focus but everything else was good?

Sounds like: If it was an "echogenic intracardiac focus", this is a "soft" or 'minor' marker for down's syndrome, and in patients who are otherwise "low risk" for genetic defects, it is not felt to indicate an increased risk for ds. But most doctors would offer you a consult to a high risk OB specialist for more testing; or blood work from you that is almost 99% accurate to check for ds, tri13 ;18. Eif may res. ...Read more

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Can ultrasounds be off when it comes to determining fetus age in the end of 1st trimester?

Can ultrasounds be off when it comes to determining fetus age in the end of 1st trimester?

Accurate: Ultrasounds are reasonably accurate at the end of the first trimester with margin of error of several days. ...Read more

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Hi I had ultrasound done can see fetal pole and yoke sac but no heatbeat baby is 6 weeks is this normal ?

Hi I had ultrasound done can see fetal pole and yoke sac but no heatbeat baby is 6 weeks is this normal 
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Maybe: By 6 weeks you usually see a heart beat but you may not be quite that far along in which case just seeing the fetal pole and yolk sac is completely normal. Hope all goes well. ...Read more

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I had ultrasound on 01/20/14, with the baby measuring at 4.8 cm, is this accurate for a dating of 11weeks 4 days fetus?

Yes: Average length at this gestational age would be 4.1 to 5.4, so your baby definitely falls within that range. Good luck! ...Read more

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Had ultrasound at 8 weeks, showed 3 sacs, 2 empty, 1 with fetus and heartbeat. Is it possible I will be having triplets??

Had ultrasound at 8 weeks, showed 3 sacs, 2 empty, 1 with fetus and heartbeat. Is it possible I will be having triplets??

1 baby: If I understand your question correctly you said that only one baby was seen at 8 weeks. If there were other babies they would have also been visible. You can ask your doctor doing the sonogram to confirm the findings and explain the results. ...Read more

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When you have an ultrasound dating scan and they say you are just under 4 weeks have they add 2 weeks or is that how old the fetus is?

Gestational age: Usually we talk in "gestational age" which already adds the 2 weeks. But it would be unusual for them to say you were just under 4 weeks based on an ultrasound. In this case, they would be only able to measure the gestational sac size. If this is true, the ultrasound would usually be repeated in 2.5 more weeks at which time the "fetal pole" with heartbeat should be seen and measured. ...Read more

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When i had my transvginal ultrasound at 6 weeks the fetus had heartbeat but at 9 weeks the heartbeat was gone. what could be the cause?

Genetic abnormality: You had an early fetal demise. This is fairly common and most often its a chromosomal (gene) abnormality during early development that is responsible. ...Read more

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Fetus measures one week ahead. When i can say that i reach the viability? When baby measures 24 weeks on ultrasound or when i am 24 weeks past LMP?

Fetus measures one week ahead. When i can say that i reach the viability? When baby measures 24 weeks on ultrasound or when i am 24 weeks past LMP?

Older than 26 weeks: Date a pregnancy is not pinpoint accurate . It is only a ballpark figure giving your a date to expect the baby to deliver. Viability of the fetus will depend on how well the fetus develops . Generally the best chance to survive is at term. At 26 weeks and older there is at least a chance ...Read more

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How accurate is ultrasound done at 20 weeks for gender determination of fetus. Is obstretics ultrasound with same accuracy. Same question for 22 wks?

Depends.: My rule has always been: don't guess! if the fetus is in a poor position for viewing the genitals then no determination can be made. At 20 weeks, if the genital region is visible there is a very high level of accuracy for gender determination. It all depends on the skill of the person doing the scan. ...Read more

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Ultrasound at 7wks 6day shows very small gest.Sac but fetus w/ a good hb measuring 7wk2d. Sac is cloudy. Was told i will miscarry soon. Is there hope?

Ultrasound at 7wks 6day shows very small gest.Sac but fetus w/ a good hb measuring 7wk2d. Sac is cloudy. Was told i will miscarry soon. Is there hope?

There's always a: Chance. 12 weeks seems to be a 'magic' crucial stage. Miscarriages are more common before 12 weeks and less common after. Ultrasound is not perfect, and sometimes the cloudy sac is a technical issue with the ultrasound. No test and no doctor can predict the future with 100% accuracy. Sometimes the best advice is to to prepare for the worse, and hope for the best. ...Read more

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Had NT ultrasound on nov.20 putting me at 12 weeks 4 days;crl of fetus was 6.2cm.What were possible dates of conception?And how accurate is all of this?

Had NT ultrasound on nov.20 putting me at 12 weeks 4 days;crl of fetus was 6.2cm.What were possible dates of conception?And how accurate is all of this?

Pretty Accurate: Estimated conception would be around sept. 9. This should be accurate to within less than a week. Relations could have taken place up to about 5 days before conception. Good luck. ...Read more

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What is the definition or description of: fetal ultrasound?

What is the definition or description of: fetal ultrasound?

Safe fetal imaging.: Fetal ultrasound is an amazing and safe imaging method employing the piezoelectric properties of quartz crystals to convert electrical current to mechanical vibrations; this creates ultra-high frequency sound waves that can penetrate inside the pregnant woman's body and bounce off different structures with variable characteristics. A computer then processes the feedback signal to image the fetus! ...Read more

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What all can fetal ultrasound at 20 weeks tell you?

What all can fetal ultrasound at 20 weeks tell you?

A lot of details.: Fetal gender, anatomy in detail (including brain, heart, spine, kidneys, extremities), amniotic fluid volume, due date estimation within 10 days of actual date, cervical and uterine anomaly detection, placental location and pathology. It is a very cost-effective test for any pregnancy and should be universally performed. ...Read more

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What exactly does an ultrasound of the fetal heart consist of?

What exactly does an ultrasound of the fetal heart consist of?

Most detailed exam: Maternal-fetal medicine or OB doctors. Sonographers spend long time looking at the heart to ensure that there are 4 chambers, an intact septum between the chambers, normal anatomy of the big vessels of the heart, a regular and normal heart rate, etc. They will also look for abnormalities that can be associated with chromosomal or other problems. Details they see change with fetal age and position. ...Read more

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