Sonography is used to capture images during pregnancy.
The use of high-frequency sound waves to capture images inside the body is known as sonography or ultrasonography. Most people associate sonography with pregnancy and ultrasound images of a baby inside the mother's womb. However, the advantages of sonography have made it a useful diagnostic procedure in the assessment, diagnosis and treatment of many medical situations.
Imaging
The primary advantage of sonography over other imaging procedures, such as X-rays, is that it does not expose the patient to any levels of radiation. Ultrasounds used to capture only two-dimensional images, but advancements in technology enable sonograms to capture three-dimensional still images, as well as four-dimensional images, which are three-dimensional images in motion. This type of imaging provides doctors with a noninvasive, radiation-free method of viewing, evaluating and diagnosing patients.
Guidance
Sonography captures real-time images of tissues, organs and blood flow. It is this real-time technology that lets sonograms provide guidance during biopsy procedures. Fine needles used for taking biopsies can be easily followed using sonography, so doctors can ensure that they are extracting samples from the necessary locations.
Specialized Areas
Sonography has been found to be advantageous in several specialized medical fields. Sonography can be used in the field of neurology to not only scan the brain and spinal cord for disorders, but also to detect evidence of a stroke. In addition to aiding in the diagnosis of eye disorders, ophthalmologists might use sonography to capture measurements of the eye for inserting prosthetics. An echocardiographer is another specialized form of sonography that focuses primarily on detecting and diagnosing heart conditions. Sonographers within these fields require specialized training.
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