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Diagnosing COVID-19 from CXR images is a complicated task for radiologists. They must identify typical patterns of the disease that are often shared with other types of viral pneumonia, which leads to errors in their diagnosis. A more accurate alternative for disease detection is CT imaging. This technique is considered the most accurate in identifying typical fndings in the lungs of COVID-19 and plays a fundamental role in the diagnosis and evaluation of COVID19 pneumonia.

Currently radiographs are available in most health centers, in addition there is a portable modality that prevents the patient from moving, minimizing the possibility of spreading the virus and exposing the patient to a lower dose of ionizing radiation and is more cheaper than a CT scan, plus a CT scan is not available in all hospitals.

The use of chest X-rays helps physicians to know how far advanced the disease is. However, some of these research results contain errors that need to be corrected to obtain models suitable for clinical use.

The diagnosis of COVID 19 is by RT-PCR with greater specificity, but the use of X-rays or computed tomography is important to observe the damage at the lung level.

The use of X-rays is more favorable than CT because it is portable and cheap. Computed tomography is more expensive and is not mobile. This affects time and costs. X-rays are now more available in hospitals.

The chest X-ray is the first recommended study method when suspected of Covid-19 infection and its interpretation is decisive in the management of patients with this disease. It is a fast and accessible method for clinicians and is available in centers with varying degrees of complexity.

Although there are still limitations in this tool, given the urgency demanded by the current state of the pandemic on a global scale, it was decided to make it free and we continue working to increase the number of images. The objective is for it to become another contribution to the detection of patients and the optimization of their management.

The images obtained from an x-ray can be affected, affecting the treatment of patients, and can occur for many reasons. One cause is the change in the size of the image that is square, affecting and distorting the image.

RT-PCR is one of the most accurate laboratory methods for detecting, monitoring, and studying coronavirus. Although this method helps us to detect the presence of the coronavirus, this test goes hand in hand with the chest X-ray, they are images that help us to see how damaged our lungs are by the virus; These tests are essential for a good recovery.

WEEK 13- ARTICLE