How does CT produce an image?
CT images are two-dimensional pictures that represent three-dimensional physical objects.
The images are made by converting electrical energy (moving electrons) into X-ray photons, passing the photons through an object, and then converting the measured photons back into electrons..
How is a CT scan image made?
The images are made by converting electrical energy (moving electrons) into X-ray photons, passing the photons through an object, and then converting the measured photons back into electrons.
The number of X-rays that pass through the object is inversely proportional to the density of the object..
How is a CT scan made?
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.”.
Why are CT images helpful?
A CT scan can be used to visualize nearly all parts of the body and is used to diagnose disease or injury as well as to plan medical, surgical or radiation treatment.Jan 6, 2022.
- A computerized axial tomography scan is more commonly known as a CT scan.
The scanner is a doughnut-shaped machine approximately 2 feet long.
It combines X-ray technology and computers to generate a cross section image of your body referred to as a “slice”. - Image quality in CT is determined by whether the images produced are a true representation of the attenuation values of the x-ray beam by the body tissue as displayed on the CT image.
Image quality is the accurate reproduction of fine detail (SR) and small differences in attenuation (CR) in the image.
