A team from King's College London have tested it on patients and say the cMyC test could be rolled out on the NHS within five years.
They claim it would save the health service millions of pounds each year by freeing up beds and sending well patients home.
About two-thirds of patients with chest pain will not have had a heart attack.
A heart trace, called an ECG, can quickly show up major heart attacks, but it is not very good at excluding more common, smaller ones that can still be life-threatening.
