Pneumonia is a serious infectious viral disease that affects the lungs. Viral pneumonia is one of the typical complications of 2019-nCoV coronavirus infection (COVID-19). Since some types of viral pneumonia are asymptomatic, imaging diagnostics are widely used to detect pneumonia. As a rule, pneumonia is noticed during an X-ray (you need to make a lateral and frontal projection of the lungs). However, in some cases, a computed tomography scan of the lungs is required to confirm the diagnosis.
CT is a highly informative method of studying internal organs and tissues by scanning them layer by layer. Computed tomography data allow you to see lesions that are only one millimeter in size. This tomographic examination makes it possible to visualize fine details by obtaining multiple sections of organ tissue. When diagnosing, the doctor can vary the direction of the slices and the thickness of the scan step depending on the nature of the lung disease.
Will CT show pneumonia?
The short answer is yes. Chest CT is an innovative and accurate diagnostic method. It is widely used to detect respiratory and viral respiratory diseases. Most often, a patient is sent for computed tomography in the following cases:
To detect small focal changes;
To recognize all kinds of complications;
To differentiate with other diseases;
To study the therapeutic effect of intensive treatment with antiviral and antibacterial drugs.
In addition, the doctor will definitely refer the patient to CT if the treatment does not give any dynamics and the disease becomes protracted.
Multispiral computed tomography of the lungs allows you to clearly identify the occurrence of complications during pneumonia. Thanks to the images, a medical specialist will be able to see pyothorax, abscess formation, atelectasis. CT often makes it possible not to confuse pneumonia with pathological conditions such as tuberculosis, pneumoconiosis, lung cancer, and sarcoidosis. Thus, tomography makes it possible to clearly differentiate pneumonia from other diseases, to identify infarction-pneumonia, and to determine the incipient infiltration. All this makes it possible to prescribe the necessary treatment on time.
CT of the lungs in the diagnosis of COVID-19
CT of the lungs of COVID-19 images It is worth noting that CT scan for suspected COVID-19 is not carried out in a continuous order ... This diagnostic method is used only when there is a suspicion of the development of a virus with a complication. Usually, during treatment, the following is carried out:
initial examination on the day of severe symptoms;
re-examination after 2-3 days if the required therapeutic effect is not achieved;
re-examination after 5-7 days in the absence or improvement of the dynamics of symptoms.
When performing CT CT, typical radiological manifestations of viral pneumonia (including COVID-19) oare carried:
numerous seals of the lung tissue of the "ground glass" type, mostly rounded in shape of various lengths with / without consolidation;
peripheral multilobar localization;
bilateral lung lesions ;
areas of consolidation, perilobular indurations;
a symptom of an air bronchogram.
Viral pneumonia caused by COVID-19 has no specific signs on CT images. Only tomography data in combination with laboratory tests make it possible to determine the exact origin of the inflammatory process in the lungs, identify complications and determine the correct course of treatment.
Learn more about CT and COVID-19 here
Computed tomography (CT) is becoming the main diagnostic tool for COVID-19, as the accuracy of this method is 97-98%. This was stated in an interview with RT by the chief specialist in radiation and instrumental diagnostics of the Moscow Healthcare Department and the Russian Ministry of Health in the Central Federal District, director of the Diagnostic and Telemedicine Center, Professor Sergei Morozov.