MEHAU KULYK / SCIENCE PHOTO LIBRARY MEHAU KULYK / SCIENCE PHOTO LIBRARY
Body imaging. Composite image of several methods used to visualise the anatomy of the human body. The techniques seen here are magnetic resonance imaging (MRI), X-rays (radiography), dissection and artworks. MRI scanning (showing part of the brain, yellow) uses radio waves and a powerful magnet to obtain slice images through the human body. X-rays (like the skull and pelvis) reveal body tissues by their differing transmission of X-rays. X-ray angiography (like the kidneys, white and yellow, above pelvis) uses a contrast medium to highlight blood vessels. These techniques are used to diagnose medical disorders. A thigh (left, brown) has been dissected in vertical section.
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