Computerized Tomography
Computed tomography is a radiological diagnostic method that uses x-rays (x-rays) to create a cross-sectional image of the area of the body being examined. During the examination, the patient lies motionless on the table of the computed tomography device. The table is inserted manually or by remote control into the opening of the device called “gantry”. The device is connected to a computer. As the x-ray source performs a 360-degree rotation around the patient to be examined, detectors arranged along the “gantry” detect the portion of the x-ray beam passing through the body and the data obtained are processed by a computer. The result is a succession of cross-sectional images of the tissues. Translated with DeepL.com (free version)
The images created can be viewed on a computer screen, transferred to film or stored on an optical disk to be brought back to the computer screen when needed. In addition, the images can be processed by the computer to obtain reconstructed images on axes perpendicular to each other. With the help of these images, 3D images can be created. In this way, it is possible to obtain internal images of the trachea, esophagus, stomach, small and large intestines, veins and urinary tract. Computed tomography has some advantages over other x-ray examinations. In particular, it shows the shape and location of organs, soft tissues and bones quite clearly. In addition, CT examinations change treatment methods by making differential diagnosis of diseases. It provides earlier and more accurate diagnosis of many diseases than other imaging methods. Since diseases are better treated when diagnosed early, CT has helped doctors save many lives with these superior features.
The examination itself is completely painless. During the examination, the patient is asked to lie on the CT table without moving. Depending on the type of examination, the patient may be injected with contrast material through the arm veins or may be asked to drink contrast material. This part of the examination may be a little uncomfortable for the patient. Contrast media may cause allergic reactions in some people because they contain iodine. The patient should inform the technician or radiologist before the examination whether he/she has ever had an allergic reaction to such substances and, if so, whether he/she is allergic to any other substances. It is designed in the best way for the safety of the patient and is manufactured in such a way that the amount of radiation exposed during the examination is the minimum necessary. Since X-rays can harm the developing fetus in the womb, the patient should inform the doctor or technician if there is a suspicion of pregnancy before starting the examination preparation.
