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X-rays are a type of radiation called electromagnetic waves. X-ray imaging creates pictures of the inside of your body. The images show the parts of your body in different shades of black and white. This is because different tissues absorb different amounts of radiation. Calcium in bones absorbs x-rays the most, so bones look white. Fat and other soft tissues absorb less, and look gray. Air absorbs the least, so lungs look black.

The most familiar use of x-rays is checking for broken bones, but x-rays are also used in other ways. For example, chest x-rays can spot pneumonia. Mammograms use x-rays to look for breast cancer.

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Photograph of a chest x-ray
Results 1 - 10 of 3,376 for "x-rays"
  1. X-Rays (National Library of Medicine)  
    X-rays are a type of radiation called electromagnetic waves. X-ray imaging creates pictures of the inside of your ... different amounts of radiation. Calcium in bones absorbs x-rays the most, so bones look white. Fat and ...
  2. X-ray - head; X-ray - skull; Skull radiography; Head x-ray ... You will be asked to lie on the x-ray table or sit in a chair. Your head ... there is little or no discomfort during an x-ray. If there is a head injury , positioning the ...
  3. Vertebral radiography; X-ray - spine; Thoracic x-ray; Spine x-ray; Thoracic spine films; Back films ... care provider's office. You will lie on the x-ray table in different positions. If the x-ray ...
  4. Chest radiography; Serial chest x-ray; X-ray - chest ... You stand in front of the x-ray machine. You will be told to hold your breath when the x-ray is taken. Two images are usually taken. You will ...
  5. X-ray - neck; Cervical spine x-ray; Lateral neck x-ray ... in the health care provider's office by an x-ray technologist. You will lie on the x-ray ...
  6. Paranasal sinus radiography; X-ray - sinuses ... A sinus x-ray is taken in a hospital radiology department. Or the x-ray may be taken in the health care ...
  7. X-ray - lumbosacral spine; X-ray - lower spine ... The test is done in a hospital x-ray department or your health care provider's office by an x-ray technician. You will be asked to lie on the x-ray table ...
  8. Abdominal film; X-ray - abdomen; Flat plate; KUB x-ray ... in the health care provider's office by an x-ray technologist. You lie on your back on the ...
  9. Bone X-Ray (Radiography) Video (American College of Radiology) (Radiological Society of North America)  
    X-ray (Radiography) - Bone Play Video Clip (00:04:40) Your Radiologist Explains Bone X-ray What is Bone X-ray ( ... of Bone X-ray (Radiography)? What is Bone X-ray (Radiography)? An x-ray (radiograph) is a noninvasive ...
  10. Lower Gastrointestinal (GI) Tract X-Ray (Radiography) (American College of Radiology) (Radiological Society of North America)  
    X-ray (Radiography) - Lower GI Tract • Overview View larger with caption Lower gastrointestinal (GI) tract radiography, also called a lower GI or barium enema, ...
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