Saturday 30 June 2012

What is CT angiography?


What is CT angiography?

Angiography is a minimally invasive medical test that helps physicians diagnose and treat medical conditions. Angiography uses one of three imaging technologies and, in some cases, a contrast material to produce pictures of major blood vessels throughout the body.
Angiography is performed using:
  • x-rays with catheters
  • computed tomography (CT)
  • magnetic resonance imaging (MRI)
CT imaging uses special x-ray equipment to produce multiple images and a computer to join them together in multidimensional views. In CT angiography (CTA), a contrast material (also known as "dye") is injected into a vein to produce detailed images of both blood vessels and tissues.

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