Artifact X-ray

X-ray artifact: what is it and how does it affect diagnosis

When conducting X-ray examinations, doctors may encounter an X-ray artifact. This phenomenon manifests itself in the form of shadows on an X-ray screen, film or plate, which are not associated with the characteristics of the object under study. Such shadows can distort the image and complicate diagnosis.

Radiological artifacts can be caused by various reasons. One of the most common is improper exposure, which can lead to uneven distribution of X-ray radiation. This, in turn, can cause shadows to appear in the image.

Another cause of X-ray artifacts may be physical aspects of the equipment itself. For example, a malfunction of the X-ray tube or detector can cause artifacts to appear in the image. Also, the need to use contrast agents may be associated with the appearance of artifacts.

In addition, radiological artifacts can be caused by improper patient positioning or too rapid movement during the examination. All this can lead to a change in the location of the object and the appearance of shadows in the image.

In order to prevent the appearance of X-ray artifacts, it is necessary to properly configure the equipment, control the exposure and positioning of the patient. It is also important to carry out regular maintenance of the equipment and train medical personnel in the correct use of the equipment.

In conclusion, X-ray artifacts can distort images and complicate diagnosis. However, proper equipment mood, exposure control and patient positioning, and timely equipment maintenance can help prevent artifacts and provide more accurate diagnosis.

X-ray artifacts are the result of image distortion created by X-ray radiation as it passes through the tissues of the human body.

*The concept of “artifact” is used in medicine and refers to any non-process data.* However, this term is interpreted differently in radiology and electroradiography.

X-ray artifacts are the image of external objects during transillumination (x-ray, tomography), which occurs when the conditions for constructing an image of the object and the position of the filming tube with the object relative to each other are violated. Thus, radiological artifacts are signs of external influence on equipment or objects of study, perceived as isotopic signs of the object of study. They arise: - When the voltage amplitude transferred to the object under study is not high enough. - When the output voltage of the tube is affected by extraneous noise voltages, when in order to mask the useful noise, amplification is added due to the counter-electrode space. With a pulse voltage of the X-ray tube of 25 - 50 kV, a short exposure time and an object contrast value of up to 8 div. under standard transmission conditions, it is possible to reproduce the image of the protector in the form of a circular arc attached to the shadow boundary (the protector is the outer circle of a control aluminum plate measuring 63x64 mm, placed at the end of the colonogram). 3mm) - 3.5mm). With a metalized X-ray protective apron placed over the colonogram, this artifact cannot be avoided. In this case, if there are no cavities inside the organ under study, the button protector will look like a rounded oval on it. Similar contours are obtained at high magnification of the control plate used to control exposure. If the above transmission conditions are maintained, they have a similar shape in the field and sign of the image under study.