What the differences between X-rays, CT scans, and MRI
What the differences between X-rays, CT scans, and MRI are.
Radiography
A special device emits a small amount of ionizing radiation, which passes through the body and is captured by a special gadget. That’s how an X-ray image appears. The dose of radiation depends on the examined area. Small areas, such as the arms, for example, get a smaller dose than bigger areas, such as the spine. On average, the dose of radiation doesn’t exceed the amount you get from the environment within one week.
The calcium that our bones contain blocks radiation, which is why healthy bones look either white or gray in images. Due to the fact that radiation easily passes through the air, healthy lungs always look black.
CT (or CAT) scan

While X-rays are used to create a 2-dimensional image, CT rotates the X-ray source 360° around the object being examined. This produces a whole series of images from different angles. Respectively, the amount of radiation emitted from it is higher. The data obtained provide a detailed 3D analysis of the viscera.
The MRI device creates a powerful magnetic field. Thanks to this, the protons in the human body line up in accordance with this field. The scanner then emits a pulse of radio waves, which knocks the protons out of the line. When the protons return to their original position, they release energy called a signal. These signals are recorded, analyzed, and used to create detailed images of the inner parts of the body.
MRI can be used instead of CT when organs or soft tissue are to be examined. MRI helps to see the difference between the q types of soft tissue and determine which ones are healthy and which ones are not.

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