Many expectant mothers have already had their first ultrasound, heard the baby's heartbeat, and started to visualize the baby developing inside of them by the time they are 20 weeks along. The 20-week ultrasound, medically termed an anatomy scan or mid-pregnancy ultrasound, is the next vital appointment.
An anomaly scan during pregnancy can be both exciting and a little nerve-wracking for many expectant parents. You can ask: Is my baby growing normally? Will the face be visible to me? Is it possible for the ultrasound to identify health issues? What is the duration of the scan?
Knowing what happens during a 20-week ultrasound will help you know what questions to ask your doctor after the procedure. Also, this makes the session seem less confusing.
What Is a 20-Week Ultrasound?
A 20-week ultrasound is a thorough prenatal examination often carried out in the second trimester. This is typically between weeks 18 and 22. Now, based on your healthcare professional, pregnancy history, local practice, and the stage of your pregnancy, the precise timing may change.
The anatomy scan examines the developing baby more closely than an early pregnancy ultrasound. This may only confirm the pregnancy, estimate gestational age, or check the heartbeat.
A qualified sonographer or medical practitioner utilizes ultrasound waves to produce images of the unborn child inside the uterus during the examination. These pictures aid in evaluating the placenta, amniotic fluid, fetal growth, anatomy, and other elements of the pregnancy.
The scan is sometimes called:
- 20-week examination
- Anatomy scan
- Ultrasound in the middle of pregnancy
- Detailed ultrasound of the fetus
- In some clinical contexts, level II ultrasonography
Examining fetal development and searching for structural anomalies is the general objective; however, the nomenclature may differ.
What Makes the Anatomy Scan Vital
The anatomy scan gives thorough images of your unborn baby's growth at a vital point in the pregnancy. Many of the body's major organs and tissues are sufficiently developed by 20 weeks to be checked using ultrasonography.
The scan enables the medical staff to evaluate if these structures seem to be growing or developing as they should. Plus, it might include details regarding:
- Measurements and fetal growth
- The position of the baby
- Heart activity
- Location of the placenta
- Amniotic fluid volume
- Development of the main organs
- Some structural anomalies
Well, you should know that anatomy scans are screening tests rather than assurances of a fully healthy child. Certain diseases might not show up on ultrasonography, develop later, or be too faint to detect.
What Does a 20-Week Ultrasound Check?
The fetus is systematically examined during your anatomy scan. While evaluating various body parts of the baby in the womb, the sonographer may take several measurements and pictures.
- Head and Brain
The medical practitioner examines the baby's skull, brain structures, and general head size and shape. To determine whether certain brain regions are suitably developed for the time of pregnancy, they might examine them.
- Face
This scan examines the baby's face anatomy, such as the profile and tissues surrounding the mouth and upper lip. Certain facial features may be more or less visible depending on the baby's posture, and some images may be difficult to capture if the infant is facing away from the ultrasound probe.
- Spine
The alignment and growth of the spine are evaluated along its whole length. Because fetal position and movement might alter how clearly the spine can be seen, the sonographer may record multiple views.
- Heart
During the anatomy scan, special attention is paid to the baby's heart. The expert will evaluate the size, location, rhythm, chambers, and major blood arteries of the heart may all be evaluated by the medical practitioner.
- Abdomen and Stomach
The scan can look at the baby's abdominal organs and see if the stomach is where it should be. It is also possible to evaluate the abdominal wall and other visible tissues during the scan.
- Kidneys and Bladder
The anatomy assessment usually includes an examination of the kidneys and bladder. During the scan, the bladder may seem to inflate and empty, which is a typical aspect of fetal growth.
- Arms and Legs
This scan also examines the presence and development of the baby's arms, legs, hands, and feet. Assessing fetal growth may also be aided by measurements of certain bones.
- Placenta and Amniotic Fluid
The placenta is evaluated by the sonographer, who may also record its location. Because abnormally high or low fluid levels might occasionally be linked to pregnancy issues, the amount of amniotic fluid is also examined.
Can the Anatomy Scan Detect Birth Abnormalities?
They can; one of the main goals of an anatomy scan is to detect certain structural problems. For instance, sometimes ultrasonography can detect problems with the brain, spine, heart, kidneys, limbs, abdominal wall, or other structures. Nonetheless, it's critical to recognize the distinction between screening and diagnosis.
A normal anatomy scan does not imply that every potential health concern has been ruled out. A typical ultrasound cannot detect certain genetic diseases, developmental disorders, metabolic conditions, and minor anomalies.
Similarly, a sonographer's observation of something out of the ordinary does not always pinpoint that the infant has a major health issue.
What Happens During a 20-Week Ultrasound?
The process is simple and non-invasive for most women. Typically, you will lie on your back or in a posture advised by your medical expert. Some amount of ultrasound gel is applied to your abdomen.
The transducer, a portable instrument, is then moved around the abdomen by the sonographer. The gadget creates images of the infant by sending and receiving sound waves.
You might observe:
- The heartbeat of your baby
- Legs and arms in motion
- The vertebrae
- The heart
- Additional growing organs
- The baby's profile
While focusing on getting precise measurements and images, the sonographer may stay largely silent. Depending on the situation, the appointment may take up to 30 minutes. For an effective anomaly scan in Siliguri, visit a highly trusted doctor in the city.
How Do You Get Ready for the Anatomy Scan?
Healthcare facilities differ in how they prepare. Arriving with a comfortably full bladder is advised by some clinics. This is especially for specific ultrasonography exams, and at 20 weeks, others might not need this.
Follow your clinic's instructions prior to your appointment.
Beneficial preparation can include:
- Put on comfy clothes that make it simple to reach your belly.
- If paperwork is needed, be a little early.
- If asked, bring any pertinent pregnancy records.
- Put your questions in writing.
- Observe the particular guidelines provided by your clinic regarding eating, drinking, or bladder preparation.
Is a 20-Week Ultrasound Safe?
Ultrasound does not use any ionizing radiation. During pregnancy, diagnostic obstetric ultrasonography has been widely utilized.
When carried out by qualified experts in the right conditions and with the right tools, it is generally regarded as safe when medically necessary.
If more ultrasound exams are necessary for your pregnancy, your healthcare provider can explain why a certain scan is advised.
What Happens If the Sonographer Can't See Everything?
Many parents are unaware of how frequently this occurs.
Your child could be:
- Going in the wrong direction
- Continuously moving
- Tucked up in a way that obscures some views
- Positioned awkwardly or too deeply for a given picture
The medical staff may ask you to move around, shift positions, or come back for another ultrasound in such situations.
What Happens If You See Something Unusual?
Please try not to make snap judgments if the scan reveals a potential issue. There are several possible causes for an ultrasound finding, and your medical professional might suggest:
- A further ultrasound
- A more thorough ultrasound analysis
- Referral to a specialist in maternal-fetal medicine
- For some suspected cardiac issues, fetal echocardiography
- Genetic counseling
- Further prenatal examinations
What was observed, how important it seems, and your unique situation will determine the next step of scanning or diagnosis. A confirmed diagnosis differs from a suspected condition.
The results, their possible implications, and the tests that potentially yield more information should all be explained by your medical team.
What Should You Ask After the Scan?
After the test is over, you might want to ask your doctor:
- Does my baby's growth correspond with its gestational age?
- Were all of the main organs and structures visible?
- Does the placenta seem to be positioned normally?
- Is the level of amniotic fluid suitable?
- Were there any conclusions that need more investigation?
- Do I need to see a specialist or have another ultrasound?
When Can You Expect the Results?
Results are delivered in different ways and at different times. During the examination, your sonographer may discuss basic observations in certain situations.
In other cases, the scan is carried out by the sonographer, but the results are later communicated by a general physician or specialist who examines the images.
If you're not sure, ask:
- When and how will my anatomy scan results be sent to me?
By asking this simple question, you can save needless worry while you wait.
Can the Anatomy Scan Detect Every Birth Defect?
It cannot; many structural problems can be found with the 20-week ultrasound; however, not all of them.
A few conditions could be too subtle to recognize. Others might not show any symptoms until much later in pregnancy. Certain metabolic or genetic disorders may not result in any unusual structural changes on ultrasonography.
For this reason, diagnostic testing and prenatal screening are two different ideas. Even though the anatomy scan gives useful information about fetal anatomy, it cannot ensure that a baby is healthy.
The Emotional Side of the 20-Week Anatomy Scan
Even though the anatomy scan is a medical test, it can be an emotional and exciting moment for the expectant mother.
You might experience excitement, tension, curiosity, or all three at once. Pregnancy can seem suddenly more real when you see your baby's movements more clearly.
You need to remember that the examination's goal is not to forecast every aspect of your baby's future health. Its purpose is to compile valuable medical insight into fetal development and to pinpoint findings that could require additional assessment or observation.
Final Words
A thorough standard exam performed during pregnancy is the 20-week ultrasound, or an anatomy scan. Major anatomical structures, such as the brain, face, spine, heart, belly, kidneys, limbs, and other visible structures, are examined, and fetal growth is assessed.
It also provides details about the amniotic fluid and placenta, and the scan is an essential medical screening test. Keep in mind that the best person to interpret your scan in light of your pregnancy is your healthcare provider.
Your healthcare professional will explain any findings. In many cases, more imaging just makes the images clearer. Your healthcare team can explain what was discovered and what comes next if something needs to be looked into further.
To best understand your anomaly scan during pregnancy, connect with Dr. Shubhi Goyal.
FAQs
1. Is the 20-week ultrasound required?
The anatomy scan is frequently advised as part of standard prenatal care; your healthcare professional will determine whether and when it is done. Talk to your prenatal care provider about the anomaly scan's timing and purpose during your pregnancy.
2. Can the 20-week ultrasound tell the baby's gender?
However, determining sex is not the examination's main medical goal and is a legal offense in India.
3. Are the anatomy scan and the 20-week ultrasound the same?
The terms are often used synonymously. The 20-week ultrasound is sometimes called the fetal anomaly scan, thorough ultrasound, or anatomy scan. Examining the baby's anatomy and evaluating development is its main goal and they are the same.
4. What is the duration of a 20-week anatomy scan?
Your baby's posture, mobility, imaging quality, and the number of views needed can determine how long the session takes. While some exams are finished rather quickly, others could take longer or necessitate a follow-up session in order to get all the required images.
5. Does an abnormal anatomy scan indicate a clear problem?
No. Unusual or ambiguous findings do not always indicate the presence of any major concern or pregnancy abnormality. To explain what was observed, the medical staff might suggest more imaging or an expert evaluation.
6. Does the 20-week ultrasound need a full bladder?
Clinics and stages of pregnancy might have different needs for preparation. Instead of believing you need to drink a lot of water, kindly follow the particular guidelines given by your ultrasonography center.
7. Is ultrasonography safe for my baby?
Medical ultrasound has been used extensively throughout pregnancy and does not involve ionizing radiation. When used professionally by qualified specialists and when medically necessary, diagnostic ultrasonography is safe.
8. What happens if the sonographer is unable to see everything clearly?
You can be advised to shift positions, take a quick walk, or come back for another ultrasound. Rather than a health issue, an incomplete inspection is common and mostly indicates the baby's position or poor visibility.
