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Dating scan pictures explained

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An ultrasound may be performed for a variety of reasons, but looking at a baby in the womb is the most common reason. If you have recently had an ultrasound and you want to know how to interpret the images on your ultrasound, then you may benefit from learning about some of the basics of ultrasound imaging. Just keep in mind that ultrasounds can be difficult to interpret, so it is best to do so with the help of your doctor. To read an ultrasound picture, look for white spots on the image to see solid tissues, like bones, and dark spots on the image to see fluid-filled tissues, like the amniotic fluid in the uterus.

If you're 12 weeks along in the pregnancy, you may be able to make out your baby's head, and if you're 20 weeks along, you may even see the spine, heart, Dating scan pictures explained, and eyes. Don't worry about the numbers and letters at the top of the Dating scan pictures explained since they're just a reference for the hospital and not related to the picture itself. Expert Co-Authored Why choose wikiHow? When you see the green expert checkmark Dating scan pictures explained a wikiHow article, you can trust that it has been carefully reviewed by a qualified expert.

This article was co-authored by Sarah Gehrke, RN. Sarah Gehrke is a Registered Nurse in Texas. She received her M.

Disregard the text and numbers at the top of your scan.

How is a dating scan...

Most hospitals and ultrasound centers use this space to include details like your name, hospital reference number, or ultrasound machine settings. Since this information does not have anything to do with what you see on the ultrasound image, you can ignore this information.

The text details

Start from the top of the image. The top of the screen or printed image is where the ultrasound probe was placed. In other words, the image you see shows what the organ or tissues look like from the side rather than from the top.

As you look further down the screen, you will see deeper tissues, such as the lining of your uterus, the inside of your uterus, and the back of your uterus.

Consider the differences in colors. Most ultrasound images are in black and white, but you can see differences in the shades of black and white in your ultrasound scan. The color differences come from the differences in the Dating scan pictures explained of the materials that the sound passes through.

Solid tissues, like bone, will appear white because the outer surface reflects more sound. Tissues that are filled with liquid, such as the amniotic fluid in the uterus, will appear dark. Determine the visible side of the body. Dating scan pictures explained ultrasound images are mirrored, meaning you see the left side of the body on the left side of the image. If you have a transvaginal ultrasound, though, it uses a straight shot. A straight shot will show the left side of the body on Dating scan pictures explained right side of the image.

Watch for common visual effects. Since ultrasound uses sound to create images of the inner structures of your body, the images are not crystal clear. Some of the most common visual effects to watch for include: This is when part of the structure being examined appears brighter than it should due to an excess of fluids in the area, such as in a cyst.

Also known as shadowing, this effect causes the area being scanned to appear darker than it should. This effect has to do with the angle of the probe.

For example, holding the probe at a right angle to some tendons would cause the area to appear brighter than normal, so it is necessary to adjust the angle of the probe to avoid this effect. You can identify the outline of your uterus by finding the white or light grey line around the edges of the ultrasound image.

Just inside of this area, there should be a black area. This is the amniotic fluid. The technician may have positioned the probe in a way that centered the image on your baby. Even if you only see white or grey lines along one or two sides of the image, this is probably the outline of your womb. Your baby will also look grey or whitish and will be located within the amniotic fluid the dark area inside of the womb.

Look at the area within your amniotic fluid to try to make out the outline and features of your baby. The details that you see in the image will depend on the stage of your pregnancy. For example, at eight weeks, the fetus will look something "Dating scan pictures explained" a gummy bear or a baked bean; at 12 weeks, you may only be able to identify the head of your baby; while at 20 weeks, you may be able to see the spine, eyes, feet, and heart.

A visual effect may create or obscure the image of a penis on an ultrasound. Consider a 3D or 4D ultrasound.

If you are interested in seeing more details of Dating scan pictures explained baby than a traditional ultrasound can provide, then you may want to ask your doctor about a 3D ultrasound. Keep in mind that these scans can be quite expensive and may not be covered by your insurance unless there is a medical reason to have one done, such as to investigate an abnormality.

Heartbeat is dynamic, so you won't be able to see it on a still picture.

Not Helpful 7 Helpful It is a rare medical condition in which an excess of amniotic fluid is observed in the amniotic sac. Not Helpful 3 Helpful EDD means 'expected date of delivery'. This will be given by the doctor in the first scan. Not Helpful 0 Helpful 5. It acts as an identification tag so that your information won't be accidentally swapped with another "Dating scan pictures explained" who may have the same name as yours.

Not Helpful 5 Helpful Measurements will be taken at the time of ultrasound, depending on the gestational age. Early gestations are measured by the crown-rump length, and later gestations are measured by an algorithm using head, abdomen and femur measurements. Determining an accurate gestational age is also dependent on how far along the pregnancy is.

Most ultrasound images are mirrored,...

If you are dated by measurements that show you to be 6 weeks pregnant, this is extremely accurate. If you are measuring when you are close to your due date, this is extremely inaccurate.

Not Helpful 16 Helpful If you are having a single pregnancy, it just refers to the baby. If you are having twins or triplets, it is a way to keep track of which baby is being measured. Not Helpful 14 Helpful Gender can generally Dating scan pictures explained identified after 7 to 8 months. Not Helpful 13 Helpful It has to do with the physics of ultrasounds and how the image is captured. A sector or vector is a type of scan that produces a fan like image, which is narrow near the transducer and increases in width with deeper penetration.

It can be useful when scanning more cramped spaces, like between the ribs. Not Helpful 0 Helpful 3. A mother and baby's blood mix during delivery. Before that, the baby's blood does not cross the placenta. Not Helpful 9 Helpful Why would an ultrasound tech ask if I used fertility drugs when I am having the threat of a miscarriage? People who need fertility drugs have a higher risk of miscarriage due to hormones.

Not Helpful 18 Helpful What is erthroblastosis and why were my babies affected by it in and what long-term effect does it have? Answer this question Flag as What should endometrial thickness be in early pregnancy? How do I read my ultra sound level II report? Where does it tell you how Dating scan pictures explained along you are in the Dating scan pictures explained Include your email address to get a message when this question is answered.

Already answered Not a question Bad question Other. Tips Remember that reading an ultrasound is a complicated process and some details may be impossible to make out without the help of a trained professional.

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