Diagnosing traumatic brain injury - CT and MRI

Because of the complexity of the brain and the nature of their interaction with the rest of the body, traumatic brain injury can lead to complications in many different problems, disorders and / o. Diagnose the extent of a traumatic brain injury is not an easy task. Modern technology has provided physicians and scientists to produce effective multi-imaging techniques and their study of the effects of brain damage moremore accurate diagnoses of problems. Two of the most common techniques are computed tomography (CT) and magnetic resonance imaging (MRI).

Computed Tomography

The term tomography comes from the Greek word for Tomos "section. The scanner is then cut, two-dimensional image produced by X-rays using a technique first proposed by the Italian radiologist Alessandro Vallebona in 1930. By moving the X-ray source and film in the opposite directionDirections with a synchronized rate, generates the image is blurred at all levels with the exception of the focal plane. This has allowed scientists to avoid the problem of overlapping images are often encountered in imaging technology.

Further advances in medical technology have changed and improved the original scanner. The advent of more powerful computers led to the development of the first CT scanners, which take the situation, a number of markers, with images and then fillthem in detail, the reconstruction of the digital scanning of tissues.

TC have been particularly useful in the diagnosis of brain lesions, because they can extend the presence of many problems of broken bones to internal bleeding to tumors.

Magnetic resonance imaging

Magnetic resonance imaging or MRI was performed with the help of research on the phenomenon of nuclear magnetic resonance. While the physics behind the imagingThe techniques are quite complicated, the basic idea is similar to the following:

An MRI scanner generates a strong magnetic field that compete displayed abundant hydrogen nuclei in the body (usually as water) in a certain way causes. pulses of radio waves are then used to "disturb" on this alignment, producing the rotating magnetic field, such as hydrogen nuclei "reset" after each beat. As the hydrogen nuclei is reset in different types of tissue in the body, the scanner with different amounts of theseInformation on building a very detailed picture of soft tissue.

MRI scans are a very effective tool for the diagnosis of neurological diseases, including cancer and diseases that occur in non-calcified tissue. But last longer than CT, MRI are usually more expensive and may be less readily available.

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