Indications For Use Of Computed Tomography
X-ray computed tomography (CT) is an X-ray method (method) capable of assessing morphological changes in organs and tissues, which in turn facilitates clinical diagnosis. The data obtained with its help should be used by the attending physician only in conjunction with the data collected by other methods of investigation.
Computer tomograms are maps of the distribution in the plane of tomography of the coefficients of X-ray attenuation. For their analysis, specialized knowledge and skills are required. Therefore, the closer the interaction between the attending physician and the specialist radiologist, the more accurate the clinical diagnosis will be.
The radiologist performs not only a visual but also a densitometric analysis of the data obtained. The prints of computer tomograms provided together with the radiographic conclusion are not an object for which precise diagnostic actions are possible, but serve as illustrative material only.
Currently, computed tomography is subdivided into a step-by-step (traditional) CT scan, in which a single tomographic section is scanned one-time, and a spiral CT scan, in which the data are taken from the whole volume under investigation, and then separate tomographic sections are reconstructed from them. Spiral CT, in turn, is divided into single-slice, in which it is simultaneously possible to obtain only one tomographic layer and a multilayer (multislice) CT, in which two to 64 tomographic sections are reconstructed simultaneously.
Spiral scanning consists in simultaneous two actions: continuous rotation of the source-the X-ray tube that generates radiation around the patient's body, and the constant translational movement of the table with the patient along the longitudinal axis through the aperture of the scanning device-gantry. In this case, the trajectory of movement of the X-ray tube relative to the axis of movement of the table with the patient's body takes the form of a spiral.
The popularity of computed tomography is increasing every year. This method is non-invasive (does not require surgical intervention), it is safe and is used to diagnose many diseases. With the help of computer tomography, you can examine almost any organ - from the brain to the bones.
In emergency cases- CT is irreplaceable! In any reception department of a foreign hospital, there are always several such devices. It is CT scan that allows the doctor to determine the patient's condition quickly. The method is indispensable for the diagnosis of internal bleeding and complex fractures, and also helps to identify herniated discs, narrowing of the canal of the spinal cord.
Screening- Taking care of your health often falls on the shoulders of the patient. Unlike a conventional X-ray, where bones and airborne structures (lungs) are best seen, soft tissues (brain, liver, etc.) can be seen on the MSCT, which makes it possible to diagnose diseases in the early stages. For example, to detect a tumor that has not yet reached a large size and is amenable to successful treatment.
Vascular disorders- With the advent of spiral and multispiral tomographs, the method is increasingly used for examination of vessels. MSCT allows the best CT scan Centre in Delhi to see the areas of stroke, hematoma, pathology of blood vessels and other dangerous disorders.
Second opinion- Often computed tomography is used to clarify pathologies identified by other methods. For example, with genyantritis, first make an x-ray of the paranasal sinuses, and then, to clarify the diagnosis, a computer tomography is performed.
