What are the types of tomography?

Imaging Physics There are 2 basic types of tomography: linear and nonlinear. In both techniques, the tube moves in one direction while the film cassette moves in the opposite direction, with both motions centered around a fulcrum.

How is tomography used?

A computerized tomography (CT) scan combines a series of X-ray images taken from different angles around your body and uses computer processing to create cross-sectional images (slices) of the bones, blood vessels and soft tissues inside your body. CT scan images provide more-detailed information than plain X-rays do.

What is the difference between an xray and an MRI?

For example, x-rays are used more for examining broken bones, but they can also help detect diseased tissue. MRIs are better for evaluating soft tissues such as tendon and ligament injuries, brain tumors or spinal cord injuries.

How is tomography done?

What is computed tomography?

What is computed tomography? Computed tomography(CT) is an imaging procedurethat uses special x-rayequipment to create detailed pictures, or scans, of areas inside the body. It is sometimes called computerized tomographyor computerized axial tomography (CAT).

When to use a tomograph?

La tomographie se montre particulièrement utile lorsque nous voulons visualiser une tumeur avant son excision. Tomography is particularly useful when we want to visualize a tumor before its excision.

What is the root word of tomography?

The term tomography comes from the Greek words tomos (a cut, a slice, or a section) and graphein (to write or record). Each picture created during a CT procedure shows the organs, bones, and other tissues in a thin “slice” of the body.

What is CT colonography used for?

CT colonography (also known as virtual colonoscopy) can be used to screen for both large colorectal polyps and colorectal tumors. CT colonography uses the same dose of radiation that is used in standard CT of the abdomen and pelvis, which is about 10 millisieverts (mSv) ( 1 ).