Computed Tomography Has an Interesting History of Its Development
Computed tomography (CT) refers to the medical imaging modality that is used to produce the clear images of the body organs. Computed tomography has an interesting history of its development. It was introduced into clinical practice in Britain in the early 1970s. Scanners were brought to study the brain in cross section but other applications came into light very soon. In 1979, G. N. Hounsfield and A. M. Cormack were awarded the Nobel Prize in medicine for the inventions of Computed Tomography. Now the Digital geometry processing is used to generate the 3D images of the body organs or the inside of an object from a large series of 2D X-ray images taken around a single axis of rotation.
The invention of the CT scanning is considered to be the greatest innovation in the field of radiology since the discovery of X-rays. This cross-sectional imaging technique provides diagnosis radiology with better insight into the pathogenesis of the body. It delivers non-invasive, cross-sectional images of the body, which can display smaller contrast differences than conventional X-ray images. Initially patients had to remain static for several minutes during scanning procedure, but now the entire procedure takes a couple of seconds to finish the whole process. Since the introduction if spiral CT scanning, it has seen a constant succession of innovations. The first spiral CT scanner was a Siemens SOMATOM Plus system. Siemens has been a leader in the development of reliable noninvasive diagnostic methods.
There are also more complex devices which can move in more than one plane for more effective performance. The first systems of the latest CT generation are now in operation at leading hospitals across the world. The history of computed tomography also includes the recent development of specific form of IMRT that refers to the TomoTherapy system. It is a commercial patented process that uses the CT guided IMRT technology. It can direct the radiation source spiraling around the patient.