Body imaging. Composite image of several methods used to visualise the anatomy of the human body. These techniques are magnetic resonance imaging (MRI), computed tomography (CT), artworks, X-rays (radiography) and dissection. The left half of the head is a 3D skull CT scan. An X-ray (lower) and an MRI brain scan (upper) make up the right half. MRI scans use radio waves and a powerful magnet. CT scans use X-rays, which are also used to reveal bones (pelvis, hands and lower leg at left) by the reduced transmission of X-rays. X-ray angiography uses a contrast medium, and has highlighted the kidney blood vessels (at elbow level). A dissected thigh (left) and artworks complete the image.