In order to fully understand the meaning of the term imaging that concerns us now, it is necessary to previously establish its etymological origin. In this sense, we have to state that it emanates from Latin and Greek, since it is composed of these two elements: the Latin noun “imago”, which can be translated as “portrait”, and the Greek word “logia”, which is equivalent to “study of”.
Imaging is a term that is not part of the dictionary of the Royal Spanish Academy (RAE). The concept is used to name the set of techniques and procedures that allow to obtain images of the human body for clinical or scientific purposes.
The imaging or medical image, therefore, it is used to reveal, diagnose and examine diseases or to study the anatomy and functions of the body. Radiology, medical thermography, endoscopy, microscopy, and medical photography are part of these techniques. Other procedures that allow obtaining data that can be represented as maps or schemes (as the electroencephalography) can also be included in imaging.
The great advantage of imaging is that it allows obtaining internal images of the body without opening it. The tomographyFor example, it is a single plane imaging method that is carried out by moving an X-ray tube over the patient.
Imaging technology and all the techniques that comprise it are so important that there are currently in the world from university careers to degrees, with the clear objective that those who wish to specialize and train in this area in order to become qualified and highly competent professionals. .
In this sense, people who are encouraged to carry out any of these educational proposals should study issues such as anatomy, cell biology, radiological techniques, neurobiology, scientific work, image processing system, scientific methodology, public health or radiological physics. , among other.
The picture of magnetic resonance, for its part, appeals to the use of magnets to polarize the hydrogen nuclei in the water molecules of the tissues. This excitation generated by the magnets in the hydrogen nuclei can be captured and spatially encoded to generate images of the body.
Each one of the images that are taken by magnetic resonance is called slices and they have the peculiarity that they can either be stored and viewed on a computer or they can be printed. The skull, abdomen, spine or heart are the parts of the body that usually undergo this type of test, which is usually characterized by these hallmarks:
• It is completely painless.
• It is necessary that the patient is relaxed and does not move, as doing so will cause the images to be blurred.
• Does not require recovery time.
The fluoroscopy is an imaging technique that generates images in real time from a constant X-ray input. Thanks to contrast media (such as iodine), it is possible to visualize how internal organs work.
The projection radiography, the nuclear medicine and the ultrasound are other imaging techniques.