6th March 2024

Investigations

First line investigations include ECG and CT coronary angiogram. If significant coronary artery disease is found on CTCA, stable angina can be confirmed. Second line investigations include non-invasive functional testing for myocardial ischaemia such as myocardial perfusion scan with SPECT, stress echocardiography, first pass contrast-enhanced MR perfusion or MR imaging for stress induced wall motion abnormalities. These investigations are used to look for reversible myocardial ischaemia. NICE recommends offering coronary angiography as a third line investigation when the results of all the above-mentioned non-invasive functional tests are inconclusive.