A medical imaging PCR test is an efficient method of detecting suspected cases of disease that do not show on other PCR tests. While effective, they can return false-negative results if done too early in the infection. It is important to perform tests fast and get accurate results when trying to minimize community spread of a disease like the highly contagious COVID-19.
PCR stands for Polymerase Chain Reaction and may be combined with an imaging test like a CT scan to give in-depth, accurate results fast.
Advantages of Using Imaging Tests For Diagnosis
In 2016, 27% of U.S. patients reported visiting an urgent care center within the last two years. This is a big number, so it would be extremely efficient to make use of fast and accurate testing methods.
Some advantages of using medical imaging PCR tests include:
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- The ready availability of these machines makes it easy to find a place to get tested
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- They are more sensitive hence offer higher accuracy
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- The examination is fast, and results come back instantly
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- Will return a positive result even if the infection evolves, as long as it is still present
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- They help pinpoint the severity of illness, and may reveal other issues like blood clots and such
Using Different Approaches for Best Results
The only real disadvantage of a medical imaging PCR test is the fact that it can yield a false negative if used in the early stages of infection. This can create false reassurance in a positive person, leading them to decide not to practice measures to avoid infecting others as they don’t know they are infected themselves.
Because of this, it is advisable to use these tests in conjunction with epidemiological history, nonpathogenic laboratory tests, clinical symptoms, and other viral detection methods like viral nucleic acid detection. The use of imaging tests alongside other methods is especially important because other methods also have their shortcomings.
For instance, the detection rate of nucleic acid and antigen may be affected by factors like storage, sampling, reagent performance, and even disease progression among other things.
In a bid to curb the spread of infectious diseases, a multi-faceted approach is often best. Whenever possible, it is good practice to make use of regular tests and also medical imaging tests for improved accuracy.