Essay on Computer Tomography

Computer Tomography CT is a modern radiation diagnosis procedure, which produces cross-section images of the human body. In the process, entire body parts such as the head, chest, abdomen or pelvis can be shown in excellent quality in a matter of seconds.
The birth of radiology started with the discovery of X-rays on November 8, 1895 by Wilhelm Conrad Roentgen where he first radiographed his wife’s hand. Immediately the world seized upon this discovery and by 1896, more than a thousand articles and over fifty books on the subject had been published. Soon, advances progressed at lightning speed and special procedures such as angiographies, etc were standard by the last 1930s.

The second revolution with X-rays came with the invention of computed Tomography (CT). This was a marriage of X-rays and advanced computer technology. The first commercial CT was invented in England, in 1972 and Geoffrey Hounsefield received the Nobel Prize for this. Advances in CT also proceeded at lightning speed with many newer generations, faster scans and other technological advancements. Today, CT is a mature, stable, important technology.

British engineer Godfrey Hounsfield of EMI Laboratories in England invented CT in 1972. Hounsfield was later awarded the Nobel Prize and honored with a Knighthood for his contributions to medicine and science. CT combined x-ray images with a computer. If you took many x-rays of the same area, at slightly different angles, a computer could put the information from the x-rays together to create a cross-sectional image.

Godfrey Hounsfield made a prototype in 1971 and the following year tried it out on a patient. The CT scanners for clinical use were first installed in 1975. The original systems were dedicated to head scanning but whole body scanners with larger patient openings became available in 1976. 30,000-CT Scanners are now installed worldwide..................

ESSAYS ON TECHNOLOGY