ANSWERS: 1
  • An ultrasound sonogram is a scan of a pregnant woman's lower abdomen to reveal an image of her baby. Ultrasound sonograms are usually performed by specialized ultrasound technicians or medical doctors.

    Preparation

    To prepare for an ultrasound sonogram, the ultrasound technician or doctor places a clear water-based gel on the woman's lower abdomen.

    Purpose of Gel

    The gel serves as a conductor for the sound waves. The sound waves are used to create a scanned image of the woman's baby.

    Transducer

    A transducer is placed on the gel to emit sound waves into the uterus. The waves scan the applied area and return back to the transducer to create an image.

    Image

    An image is creating by signals sent from the sound waves. The sound waves bounce off bones and tissue, essentially creating a black and white image in the ultrasound sonogram computer.

    Understanding the Ultrasound Sonogram Image

    When the sound reflects off tissues and bone in the womb, the data is transmitted back to the computer. Areas of high-reflection, such as bones, are usually shown as white. Areas of low-reflection, such as fluids, are usually black. The resulting image is a baby outlined in white, floating in a black liquid background.

    Source:

    American Pregnancy Organization

    Radiology Information: Ultrasounds

    Radiology Health: Ultrasound Information

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