CAT Scan

Innovation Info
Inventor (s): 
Godfrey Hounsfield
Allan Cormack
Country (invented in): 
Year Invented: 
Image Credit:
Main Image: 

Who invented CAT-Scans?

CAT scan was invented by two people Godfrey Hounsfield from EMI Laboratories in England and Allan Cormack from Tufts University in Massachusetts in 1972.


When was the CAT-Scans invented?



When the patent was granted on the CAT-Scans?

Robert S. Ledley was issued a patent 3,922,552 for CAT-scan on November 25, 1975.


Who was the patent granted to on the CAT-Scans?

Robert S. Ledley.

What is CAT- Scan?

  • CAT-Scan is composed of X- ray equipment to create 3D images of organs, bones, soft tissues, fat etc using automated axial tomography. CAT-Scan is also referred as CT-scan which stands for Computed tomography.
  • CT scans provide more clarity than X-Rays and it is easy to detect problems like cancers, cardiovascular disease, infectious disease, appendicitis, trauma and musculoskeletal disorders.
  • CAT-Scans are classified in to various generations. At first CT scan requires around five to six to complete the scan by pressing the patients head beside a rubber membrane. In the latest generation thin X-ray and single detector are used for scanning.
  • In the second generation full body CT scans were introduced and 20 or more X-ray beams and detectors were used which improved the quality of the image greatly.
  • Many developments were made in the present day CT scan device and you can complete the entire scan of the body within one-third of a second.
  • Patients lie down on a flat platform of the CT scan device and the platform is passed through the tunnel in the CT scan device.
  • X-rays are produced from CT scan device which scans the body from different angles. X-rays are pass through the human body which contains high energy photons and then the computer gathers all the information and creates the 3D image of the body.


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