X ray radiography

It one of the vital diagnostic tools , providing detailed images of dense body parts such as bones. In this technique a high intensity beam of x rays are passed though the body part to be examined . these x rays are fell on a photographic plate . the dense tissues such as bones , appeared as white and soft tissues appear as gray and air appears as black. The image is known by name x ray radiograph. For imaging bones we use ordinary x rays called plain x ray . to take images of blood vessels we use contrasting x rays .

Angiography

This is a technique used for imaging blood vessels. This is known as angiography . in this technique a dies is injected into the blood vessels to be examined . the blood flow through the arteries marked and we can find in any blockage . the high quality images are obtained by interfacing computer to this. The procedure is known as digital subtraction angiography.