Digital x-rays: principle, method, advantages, disadvantages
Radiography today is still relevant, despite the fact that the introduction of General medical practice methods, such as imaging, including CT and magnetic resonance. This research method is used for a long time. It helps the clinicians to verify the diagnoses, and then subsequently to prescribe treatment correctly. But if you had had an opportunity to evaluate and store the results on tape, which is essentially the only evidence of the survey, in modern conditions there is a digital x-ray. About it will be discussed.
The concept of the method and its essence
X-rays, both digital and analog, have the same basis. Through the object under examination – the thorax, the pelvis, skull bones, limb, undergo x-rays. The radiation source is the so-called x-ray tube. Film when the analog version is a storage location and a place where the result of the study can be seen. When it is lost to recover the x-ray picture will be impossible.
Digital radiography is used extensively both in polyclinic and hospitals. The advantages of this method are numerous, especially when compared to analog images, despite a similar principle of obtaining images.
The most important plus – possibility of documenting the results of the survey. If film is the only document confirming the fact of carrying out radiography, digital method involves archiving data, storing them in a single database.
Moreover, in controversial cases, as well as in conflict situations, the presence of the film, disk or snapshot is stored in a computer system, will eliminate the loss of data.
Important, an advantage of digital radiography is the availability of access to images. Including remote access, which again will allow you on the course to advise these or other controversial, unclear situation.
The advantages don’t end there. Radiation exposure for organs and tissue is an important indicator you should pay attention to the doctors and the patient. This indicator is measured in millisievert (mSv).
If you compare the radiation exposure that occur when digital and analog, it turns out that in the case of digital it is 9-10 times less.
That is, when using this method, potential damage to the actively proliferating tissues and the whole organism is substantially reduced. In the study of chest digital x-ray radiation exposure is 0.03 mSv. The use of films would entail a ten-fold increase in this figure of 0.3 mSv. The same is typical for studies of other regions.
The following convenient option when conducting a digital x-ray, is the possibility of tuning parameters such as sharpness, contrast, including the rigidity of the image. This will allow the specialist performs an image analysis to more accurately assess the situation. That is, such innovation can improve the contrast, it will be possible to compare the characteristics of blackouts or enlightenment, to compare them, and then come to the logical conclusion in conclusion.
Image you can mirror, rotate, crop, zoom in the region of interest. It is possible to keep comments or opinions to the picture directly in the computer. This abundance of technical possibilities makes the method unique and very valuable in the diagnostic plan.
How is the procedure of the study?
When conducting x-ray no special features in the preparation of the study. The digital technique is organized in the same way as analog.
First you need to understand where you can pass the examination. Of installation to perform this diagnostic method can be localized in the clinic and in the hospital, and the tuberculosis clinic. To sign up, and then go through the procedure, you need to consult a doctor. He will explain whether there is evidence, what are the disadvantages of this survey will tell you what specific options will be needed for a more precise and rational use of the results.
The procedure itself has no special requirements. In order to most effectively pass the medical examination, you need to listen carefully to the medical staff. If necessary, all jewelry, metal bangles, earrings must be removed, especially when you take the picture of the brush, when the bones are small.
Evaluation of the result takes place without the participation of the patient. A doctor with a certificate in imaging techniques or the radiologist carefully read the at your workplace. Digital radiography enables this even with remote access, remotely. The results can be see on the following day. To make any conclusions on a picture alone does not make sense. Except, of course, cases where the patient has a medical education.
The results of the study do not contain a specific diagnosis.
They only reflect the view of a specialist of the shadow pattern of a particular area of the body. With the diagnosis and tactics of treatment should be determined by Clinician: therapist, pulmonologist, gastroenterologist, urologist, surgeon, traumatologist.
What clinical situation allows to detect a digital x-ray?
X-ray in office refer patients with suspicion on a variety of pathology. This again suggests that the method is demanded for the adequate treatment and advice.
X-ray diagnosis of pulmonary diseases helps to eliminate such hazardous situation as tuberculosis, cancer and other tumors of the lung. In these cases, radiography is not the ultimate authority. Complemented by more accurate methods, but the described method allows to guide the doctor to further identify and differentiate the disease.
X-ray study of the abdomen can be review. It is intended to exclude acute surgical pathology: perforated ulcer, intestinal obstruction, ureteral, and others. In addition, this method is used for detection of tumors and functional disorders of the digestive and urinary system. Only for these cases, the desired suspension of barium and other contrast agents.
Radiographic method of research in the digital option is not without drawbacks. But despite this, it remains an important and very valuable in the diagnosis of diseases of different localizations.