S5.12 In the blood: using circulating DNA to detect and monitor cancer
Genetics Unzipped
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Is the Grail Test Really a Good Test?
Could these kinds of technologies, whether it's the grail test or other circulating cheedeana tests, be a way of monitoring cancer? Because that would be incredibly reassuring for patients and their families. I look, let's just be clear, no test is absolutely perfect, so we'll never be able to give people a hundred % guarantee. But what we can do is to significantly improve the information we have. So one specific example of what you've just described is what we call minimal residual disease. We may have removed a tumour with surgery, but there might still be some tumour that is invisible through our current imaging technologies. That offers the opportunity to to catch it and deal with
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