Contrasting the methods of x-ray examinations

Contrasting methods of radiological research - methods of radiological research, which for the study of any system (cardiovascular, cholelithiasis or urinary, digestive, and others), a separate body (the gallbladder, esophagus, stomach, colon and others), any part of the body (abdominal segment of the esophagus, the body of the stomach, the porter and others) or even individual tissues (the mucous membrane of the esophagus, the mucous membrane of the stomach, cellulose mediastinum, perinephral cellulose and other) using a special contrast medium (see). They would be more correctly called: methods of radiological research in artificial contrasting.
In contrast, the ways R. I., when you are not using a special contrast medium, is called simple methods R. I., or native methods R. I. (these include, for example, radiography skeleton pictures chest cavity and so on).
The majority of human organs has almost the same optical density, and surrounding tissues, which they are not visible under fluoroscopy and x-ray analysis. Therefore for their x-ray examinations have to resort to artificial contrasting with the help of contrast agents.
The names of the methods of radiological research, which produces artificial contrast study investigated object, in some cases reflect applied contrast agent and the monitoring authority (pneumomediastinum, pneumoperitoneum, pneumotropica), other bodies and the way research (angiography, bronhografiya, fistulography), the third one-used a contrast agent, the studied organs and the way research (pneumotachography, pneumoencephalography, newmailboxname and so on), the fourth - the monitoring bodies and method of administration of contrast medium (oral cholecystocholangiography, Poligrafia, excretory urography, retrograde urography, and so on).
The names of the methods in which produce double contrast study or contrast of the examined organ inside and outside (Fig. 1, 2 and 3), reflect the mission, the method applied research, and study the body (paleography esophagus, parietaria stomach and so on).

Fig. 1. The method of double contrast study of the colon. On the background introduced into the colon air clearly visible coated with a thin layer of barium suspension large, rough tumor, jutting out into the bowel lumen and abdulrosa her.
Fig. 2. Parietotemporal of the esophagus. On the front-left side of the middle third of the esophagus has a semi-oval filling defect with clear contours. Visible shadow of the tumor itself (arrows), bordered by air, introduced back in the mediastinum (leiomyoma).
Fig. 3. Cholangiography during the operation. Clearly visible is made by contrast agent outside - and intrahepatic bile ducts.

Because of contrasting methods x-rays available in almost all organs and tissues of human organism. Many methods of research, in which produce artificial contrasting bodies, is used so widely that they belong already to the standard methods contrasting studies (for example, contrast examination of the pharynx, esophagus, stomach, and colon). These methods essentially have no contraindications (except in extremely severe General condition of the patient) and is so simple that it can be produced in any x-ray room for both stationary and ambulatory conditions. Other more complex methods are called special methods contrasting studies (angiography, bronhografiya, lymphography, pneumomediastinum, paleography, intravenous holegrafii and so on). Special methods of contrast x-ray examinations are applied on the strict condition. Each of these methods has certain contraindications.
The technique of contrasting studies (manner, place, speed and amount of contrast agent administered, the patient, technical conditions of shooting) depends on the body that is exposed to the study of the problems facing the researcher.
Special methods of contrast x-ray examinations, as a rule, more or less complex, require instrumental introduction of contrast agents, and most importantly, can be accompanied by an undesirable reactions (of varying intensity pain, weakness, fever), and even severe complications (collapse, shock, break the investigated organ and others). Therefore, special methods of contrast x-ray examinations are used in the hospital. They can be performed as an outpatient only in cases when (if necessary) the patient may be given qualified emergency and it can be immediately hospitalized, for example in the conditions of the hospital-polyclinical Association.
Each x-ray room in which produce special methods of x-ray examinations, should always be ready all the necessary means for first aid (syringes, set of needles, sterile dressings, sterilizer, medicines).
Advances in the study of morphology and functions of the various bodies, to clarify the recognition of various diseases are inseparably connected with rational use of the contrasting methods of their improvement and development of new effective and safe methods of artificial contrast organs and tissues.
Even such valuable methods of x-ray examinations, as tomography, rentgenonegativee and others, become more effective if they are combined with artificial contrast study investigated organ.