Lange review computed tomography examination

How does a CT scan work Pubmed?

The CT scan is essentially an X-ray study, where a series of rays are rotated around a specified body part, and computer-generated cross-sectional images are produced..

Study guide books

Who Invented the CT Scan? The first commercially available CT scanner was created by British engineer Godfrey Hounsfield of EMI Laboratories in 1972.
He co-invented the technology with physicist Dr.
Allan Cormack..

What is the basic principles of CT?

The term “computed tomography,” or CT, refers to a computerized x-ray imaging procedure in which a narrow beam of x-rays is aimed at a patient and quickly rotated around the body, producing signals that are processed by the machine's computer to generate cross-sectional images, or “slices.”.

What is the physics behind CT scan?

The CT x-ray tube (typically with energy levels between 20 and 150 keV), emits N photons (monochromatic) per unit of time.
The emitted x-rays form a beam that passes through the layer of biological material of thickness Δx.
A detector placed at the exit of the sample, measures N + u039.

1. N photons, u039
2. N smaller than 0