High-Resolution Computed Tomography (HRCT) tests are a different way of deciding the presence of the viral infection in the body, which is being done right now.
The chest scans are being increasingly ordered for patients at risk- those who are showing classic signs of the infection but get a negative COVID RT-PCR report (either because of faulty testing or premature incubation period).
While the normal PCR tests- RAT (Rapid Antigen Tests) and RT-PCR (Real-Time Polymerase Chain Reaction Tests) find out the viral presence by collecting samples from the nose and/or the throat, an HRCT test is a diagnostic tool that includes imaging of the lungs.