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complete guide to anomaly scan

Most commonly asked questions about anomaly scan

fetal skull
Fetal eyes
fetal brain
ultrasound image of nose and lips
3D/4D ultrasound of Image of baby face
ultrasound image of fetal hands and fingers

What is an anomaly Scan?

An anomaly scan, also known as a fetal anomaly ultrasound or a level 2 ultrasound, is a detailed ultrasound examination performed during pregnancy. It is typically conducted between 18 to 22 weeks of gestation and is aimed at evaluating the baby's anatomy and development. 

Ashwin scans , Chennai , Ambattur are the most affordable scans for pregnancy. It is done by a well experienced radiologist having more than 25 years experience.

 

During an anomaly scan, what does the radiologist see of your baby ?

Abnormalities in skull       Actual ultrasound image of normal skull 

                                  

Abnormalities in Eyes       Actual ultrasound image of normal Eyes

 

Abnormalities in Brain      Actual ultrasound image of normal Brain

                                  

Abnormalities in lips        Actual ultrasound image of normal Lip

like cleft lip       

 

 

 

 

 

Abnormalities in face 3D/4D Image      Actual ultrasound image of normal face 3D/4D 

Abnormalities in in hands      Actual ultrasound image of  normal hands

Abnormalities heart like holes    Actual ultrasound image of  normal Heart

eg VSD                 

 

Abnormalities in spine      Actual ultrasound image of  normal spine 

Abnormalities in Stomach.       Actual ultrasound image of  normal Stomach

Abnormalities in Abdominal wall.  Actual ultrasound image of  normal Abdominal wall

like hole      

Abnormalities in Kidney.       Actual ultrasound image of normal Kidney.

Abnormalities in Bladder.       Actual ultrasound image of normal Bladder.

Abnormalities in Leg and foot.       Actual ultrasound image of Leg and foot.

Abnormalities in Amnitoic fluid.       Actual ultrasound image of Amnitoic fluid.

 

 

Abnormalities in Placenta.       Actual ultrasound image of Placenta.

ultrasound image of fetal heart four chamber
ultrasound image of fetal spine
ultrasound image of fetal stomach
ultrasound image of fetal abdominal wall
ultrasound image of right and left fetal kindeys
ultrasound image of fetal bladder
ultrasound image of lower limbs and foot
ultrasound image of amniotic fluid water level
ultrasound image of placenta

How much is pregnancy anomaly scan in Chennai?

An anomaly scan in Chennai will cost around Rs 1500 to Rs 3500. Ashwin scans , chennai , Ambattur are the most affordable scans for pregnancy. We charge Rs 1500 only. It is done by a well experienced radiologist having more than 25 years experience. 

Is an anomaly scan 100% accurate?

It is important to understand that while anomaly scans are highly valuable, they are not 100% accurate. Here’s why: If the baby is in a position that makes it difficult to visualize certain organs or body parts, it can hinder the ability to detect anomalies. Factors like maternal obesity, the presence of abdominal scars, or the amount of amniotic fluid can affect the quality of the images obtained during the scan.Some anomalies are more easily detectable than others. For instance, structural anomalies like spina bifida or heart defects might be more apparent than subtle genetic abnormalities or minor issues.The scan is less effective at detecting functional or metabolic disorders that do not have a visible structural component.Some conditions or anomalies may develop after the time of the scan, which won't be detected during this mid-pregnancy assessment.

Which week is best for an anomaly scan?

The optimal timing for an anomaly scan, also known as the detailed or mid-pregnancy scan, is typically between 18 and 22 weeks of gestation. 

Why 18 to 22 Weeks is Optimal for anamaly scan?

By this stage, the fetus has developed sufficiently for detailed examination. Key organs and structures, such as the heart, brain, spine, limbs, and kidneys, are well-formed and can be evaluated for any anomalies.

There is usually an adequate amount of amniotic fluid at this time, which helps in getting clearer ultrasound images. This fluid acts as a medium that enhances the quality of the images.

The fetus is large enough to allow for detailed imaging but not so large that it becomes difficult to capture comprehensive views of certain body parts.

If any abnormalities are detected, the timing allows for further diagnostic testing, consultations, and planning for potential interventions or management options, including specialized care or decisions regarding the pregnancy.

 

Is the husband allowed an anomaly scan?

We at Ashwin scans , Chennai , Ambattur are welcome to bring your family member with you, whether it's your husband, a parent, or even a child.

In most healthcare settings, husbands or partners are allowed and often encouraged to attend the anomaly scan. Their presence can provide emotional support and allows them to be actively involved in the pregnancy. However, the specific policies can vary depending on the location and the  healthcare provider.

Is anomaly scan safe for babies?

Yes, the anomaly scan is considered safe for the baby. It is a routine part of prenatal care that uses ultrasound technology to provide detailed images of the developing fetus. 

What are the Safety Aspects of the Anomaly Scan ?

The anomaly scan uses ultrasound waves, which are high-frequency sound waves, to create images of the baby. Unlike X-rays or other imaging methods that use ionizing radiation, ultrasound does not pose the same risks and is generally considered safe for both the mother and the baby.

Ultrasound has been widely used in obstetrics for decades. Numerous studies and extensive clinical experience have shown that it does not cause harm to the developing fetus or the mother when performed according to medical guidelines.

The scan is non-invasive, meaning it doesn’t involve entering the body or using any instruments that could cause discomfort or harm. The ultrasound probe is simply placed on the mother’s abdomen.

The ultrasound machines used in prenatal care are designed to operate within specific energy limits that are safe for medical use. These machines are regularly calibrated and maintained to ensure they operate safely and effectively.

The duration of the anomaly scan is typically between 30 to 60 minutes. This limited exposure to ultrasound waves is not associated with any adverse effects on the baby.

Healthcare professionals follow established guidelines and protocols to ensure the scan is performed safely. This includes using the lowest possible ultrasound energy levels and minimizing scan time while obtaining the necessary diagnostic information.

Why is an anomaly scan done many times over several times?

Sometimes, the initial scan might not provide clear or complete images of all fetal structures. This could be due to:

If the baby is in a position that makes it difficult to view certain organs or body parts.

Factors like maternal obesity, scar tissue, or insufficient amniotic fluid can affect image clarity.

Occasionally, the equipment might not capture clear images, or the scan could be interrupted.

In these cases, a follow-up scan is scheduled to complete the assessment.

Is it OK to skip an anomaly scan?

Skipping an anomaly scan is generally not recommended because it plays a critical role in monitoring the development and health of the baby. 

What is the importance of an Anomaly Scan?

The anomaly scan is designed to detect structural abnormalities in the baby, such as heart defects, brain abnormalities, spinal issues like spina bifida, limb deformities, and other congenital conditions. Early detection can be crucial for planning and management.

The scan helps to ensure that the baby is growing and developing normally. It measures various parts of the baby's body to confirm that they are within expected ranges for the gestational age.

It checks the position and health of the placenta, which is essential for the baby’s nourishment and oxygen supply. Conditions like placenta previa (where the placenta covers the cervix) can be identified and monitored.

The scan assesses the amount of amniotic fluid around the baby. Abnormal levels can indicate potential problems, such as growth restrictions or potential complications.

Detecting anomalies early allows parents and healthcare providers to plan for necessary interventions, either during pregnancy or shortly after birth. This can include medical treatments, surgeries, or specialized care teams being prepared for delivery.

For most parents, the anomaly scan provides reassurance that their baby is developing normally. It can reduce anxiety and provide peace of mind during the pregnancy.

What are the Risks of Skipping the Anomaly Scan ?

Without the scan, structural anomalies may go undetected until later in the pregnancy or even after birth, which could delay necessary treatments or interventions.

Issues such as abnormal placental placement or fluid levels might not be identified, potentially leading to complications that could have been managed with earlier detection.

Parents and healthcare providers may miss the opportunity to prepare for special medical needs, delivery plans, or immediate postnatal care requirements.

Is the anomaly scan painful?

No, the anomaly scan is not typically painful. It is a non-invasive procedure that uses ultrasound technology to create images of the baby in the womb.

What to Expect During the Anomaly Scan ?

You may be asked to have a moderately full bladder before the scan, especially early in the pregnancy, to improve the visibility of the baby. This might cause some discomfort due to the pressure, but it’s generally manageable and not painful.

A clear, water-based gel is applied to your abdomen. This gel helps the ultrasound probe (transducer) to make good contact with your skin and allows for better transmission of sound waves. The gel might feel cool when first applied.

The sonographer will move the probe across your abdomen to capture images of the baby. This movement should not cause pain, although you might feel some mild pressure as the probe is pressed against your skin to get clearer images.

The sonographer may ask you to adjust your position slightly to get better angles or views of the baby. This might involve turning on your side or changing the tilt of your body, but it shouldn’t cause discomfort.

The scan usually takes about 30 to 60 minutes. During this time, the sonographer will check and measure various aspects of the baby's anatomy. The length of the scan can vary depending on factors like the baby's position and the clarity of the images.

What Sensations You Might Experience in an Anomaly scan ?

You might feel some gentle pressure as the sonographer moves the probe around your abdomen. This is typically not painful and is necessary to get good contact and clear images.

The gel applied to your abdomen might feel cool, but it warms up quickly and is usually not uncomfortable.

The probe's movement across your abdomen can create a sensation of rubbing or sliding, but this is generally very mild and not uncomfortable.

 

What Factors That May Affect Comfort while scanning in pregnancy ?

 

If asked to have a full bladder, you might feel some discomfort from the pressure. This is more common in early pregnancy scans and less likely needed for anomaly scans around 18-21 weeks.

If you have a particularly sensitive abdomen or specific conditions (like scars or tenderness), you might feel more aware of the probe's pressure, but it should not be painful.

The skill and technique of the sonographer can influence your comfort. Experienced professionals typically perform the scan smoothly and gently.

Can I eat before an anomaly scan?

Yes, you can eat before an anomaly scan. There are generally no restrictions on eating or drinking before the scan. In fact, maintaining normal eating and drinking habits is encouraged. Here’s a detailed look at why it’s fine to eat before the scan and any other considerations you might need to keep in mind:

What can I Eat and Drink Before the Anomaly Scan ?

Unlike some medical tests or procedures that require fasting, the anomaly scan does not. Eating and drinking normally can help maintain your comfort and well-being during the scan.

Staying well-hydrated is beneficial. A moderately full bladder can improve the quality of the ultrasound images, especially earlier in pregnancy. For the anomaly scan, a full bladder is less crucial, but being hydrated helps in obtaining clearer images.

Eating a light meal or snack before the scan can keep your blood sugar levels stable, preventing you from feeling faint or uncomfortable during the procedure, which typically lasts 30 to 60 minutes.

Eating before the scan does not affect the ultrasound images or the results. The primary focus is on visualizing the baby’s anatomy, which is not influenced by your food intake.

What are the Practical Tips on the Day of the anomaly Scan ?

Having a light meal or snack is perfectly fine. Avoid very large or heavy meals right before the scan, as they might make you feel bloated or uncomfortable while lying down.

Drink plenty of water throughout the day. A moderately full bladder can be helpful for the scan, especially if advised by your healthcare provider. However, you don’t need to overfill your bladder.

It’s generally good to avoid excessive caffeine before the scan. Caffeine can make the baby more active, which might make it a bit harder to get clear images if the baby is moving around a lot.

Wear loose-fitting clothing to allow easy access to your abdomen. You might need to slightly undress for the scan or have your clothing adjusted.

Give yourself enough time to arrive at the clinic or hospital without rushing. A relaxed approach can help reduce any anxiety about the procedure.

Consider bringing a light snack and some water for after the scan, especially if it’s a longer appointment or if you might be waiting.

 

What are steps to Prepare for an Anomaly Scan ?

Know What to Expect: The anomaly scan, usually performed between 18 and 21 weeks of gestation, checks the baby’s development and looks for any structural anomalies.

Duration: The scan typically takes 30 to 60 minutes. Understanding the procedure can help reduce anxiety and prepare you for what will happen during the scan.

Normal Diet: You can eat and drink normally before the scan. There’s no need to fast. Having a light meal or snack can help you stay comfortable and maintain stable blood sugar levels.

Hydration: Stay hydrated. Drinking water before the scan can be helpful, as a moderately full bladder can improve the clarity of the ultrasound images, especially in earlier pregnancy stages. However, for an anomaly scan, it’s less critical to have a full bladder, but good hydration still supports better imaging.

Moderately Full Bladder: If advised by your healthcare provider, drink about 2-3 cups (500-750 ml) of water an hour before the scan. This can help in getting clearer images, though it’s not always necessary for the anomaly scan.

Comfortable Fullness: Ensure your bladder is full but not overly uncomfortable. If you need to use the restroom, you can typically do so just before the scan, but check with the clinic for their specific guidance.

Comfortable and Accessible: Wear loose, comfortable clothing that makes it easy to access your abdomen. Two-piece outfits (like a top and pants or a skirt) are often more convenient than a dress, as you can easily lift your top and lower your waistband.

Remove Accessories: Avoid wearing any large belts or clothing with heavy embellishments around your waist that could interfere with the scan.

Arrive Early: Plan to arrive at the clinic or hospital a bit early to allow time for check-in and to relax before the scan. This helps in reducing stress and ensures you are not rushed.

Appointment Details: Carry any necessary paperwork, identification, or previous medical records if required by your healthcare provider.

Partner or Support Person: If allowed and you prefer, bring your husband, partner, or another support person. It can be a special moment to share, and they can provide emotional support.

Know What You Want to Ask: Prepare any questions you might have about the scan, your baby’s development, or what the results might mean. Write them down if needed, so you don’t forget to ask during your appointment.

Discuss Concerns: If you have any worries or concerns about the scan, discuss them with your healthcare provider beforehand.

Stay Relaxed: Try to remain calm and relaxed. The anomaly scan is a routine procedure designed to provide valuable information about your baby’s health.

Comfort Items: Consider bringing a small cushion or support for your back if you think you might need it while lying on the examination table.

Rest and Recover: Plan a restful period after the scan, especially if you have been anxious or if the appointment might be long.

Follow-Up: Understand what the next steps are based on your scan results. Your healthcare provider will guide you on any further tests or consultations if needed.

What to ask during an anomaly scan?

Is the baby growing appropriately for its gestational age?

  • This helps ensure the baby is developing at a healthy rate.

Are all the baby’s organs and structures developing normally?

  • The scan checks various organs such as the brain, heart, spine, kidneys, and limbs for any abnormalities.

Did you see everything you needed to see clearly?

  • Sometimes, the position of the baby or other factors can make it challenging to get clear images of certain areas. Asking this ensures that the scan was thorough.

Are there any abnormalities or concerns detected during the scan?

  • If there are any findings, it’s important to understand what they are, their significance, and what further steps might be necessary.

 

Is anomaly scan expensive?

An anomaly scan in Chennai will cost around Rs 1500 to Rs 3500. Ashwin scans , chennai , Ambattur are the most affordable scans for pregnancy. We charge Rs 1500 only. It is done by a well experienced radiologist having more than 25 years experience.

Can we drink water before an anomaly scan?

Please maintain your normal eating and drinking habits before your ultrasound scan, as a full bladder is not necessary. However, we advise against emptying your bladder within 30 minutes of your appointment, unless you are uncomfortable, as having some fluid in the bladder can enhance visibility during the scan.

How much time does an anomaly scan take?

This procedure is conducted on the top of your abdomen and typically lasts between 30 to 45 minutes.


What is next after an anomaly scan?

  • Your healthcare provider will discuss the findings of the anomaly scan with you. They will explain if everything appears normal or if any abnormalities or concerns were detected.

 

  • If the anomaly scan reveals any abnormalities or if there are specific concerns, your healthcare provider may recommend further diagnostic tests or consultations with specialists. These tests could include:

    • Genetic Testing: If there are indications of genetic conditions or if you are at higher risk based on family history or other factors.

    • Additional Ultrasound Scans: Sometimes, more detailed scans or specialized scans (such as fetal echocardiography for heart abnormalities) may be recommended.

    • Amniocentesis or Chorionic Villus Sampling (CVS): These tests may be offered if there are concerns about genetic or chromosomal abnormalities.

 

Can anomaly scan go wrong?

  • Sometimes, the position of the baby or the amount of amniotic fluid can make it difficult to obtain clear images of certain structures or organs. This can lead to incomplete assessments or the need for additional scans.

  • If the baby is in a position that makes it hard to visualize specific areas, such as the face or heart, it might be challenging to fully assess those parts.

  • While anomaly scans are highly accurate, they may not detect all types of anomalies. Some conditions might be subtle or not fully developed at the time of the scan, leading to potential missed diagnoses.

 

Is anomaly scan scary?

 

It's normal to feel anxious or concerned about an anomaly scan, but it's important to remember that most babies are typically healthy and the scan often serves to reassure parents.

How to Read Anomaly Scan Report?

 

  • Patient Details: Confirm that the report includes accurate information about the patient (mother's name, gestational age, etc.).

  • Date and Time: Note when the scan was performed.

  • Normal Findings: Look for sections indicating that structures and organs are within normal limits (e.g., "Normal fetal brain," "No abnormalities detected in the heart").

  • Abnormal Findings: Pay attention to any abnormalities or concerns identified. These may be described with specific terminology indicating the nature and severity of the anomaly (e.g., "Mild dilation of renal pelvis," "Possible cleft lip identified").

  • The report may include measurements of fetal biometry, such as head circumference, abdominal circumference, and femur length. These measurements help assess fetal growth and development.

  • Amniotic Fluid Levels: Check if the report mentions the amount of amniotic fluid present, which is important for fetal well-being.

  • Placental Assessment: Note any comments on the position and condition of the placenta.

  • The report may provide recommendations based on the findings. This could include suggestions for follow-up tests, consultations with specialists, or additional monitoring.

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