what's the use of a scanner in medicine?

Answer 1

CT SCANNERS are used in medicine as a diagnostic tool to diagnose many disease. It has also been used for preventive medicine or screening of disease.It is also used as a guide for interventional procedures.

Answer 2

The use of scanners has revolutionized the diagnosis of disorders of all soft tissues within our bodies, especially disorders of the head and brain.
There are mainly two types of scanners used in medicine; The CAT scan (Computerized Axial Tomography) and the MRI (Magnetic Resonance Imaging).

The CAT or CT scan is a large coil of x-ray tubes that rotates around the body, taking x-rays from all angles. A computer integrates all of these x-rays into a single, three-dimensional image on a television screen then the data is saved on the computer.

MRI is based on the physical and chemical principles of nuclear magnetic resonance (NMR), a technique used to gain information about the nature of molecules. There are 3 basic components to the MRI.
1.The primary magnet which is the largest part of the MRI. It develops a magnetic field of adequate strength to create MRI images.
2. The gradient magnets are the 'fine-tuning' part of the MRI machine. They allow the MRI to focus on a specific part of the body. The gradient magnets are also responsible for the clanging noise in a MRI.
3.The coil emits a radio frequency that makes the MRI possible by using the properties of hydrogen atoms to distinguish between different tissues within the human body. There are coils made for shoulders, knees, and other body parts.