Hi.
Generally speaking, the exposure from a HRCT is less than a plain CT scan but it depends on the slice thickness in addition to various other technical parameters.
However, the radiation exposure with both these scan are far less than the maximum permissable radiation exposure.
Hence when medically indicated/advised, it is safe to undergo these tests to establish a diagnosis.
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
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