Synopsis
Select an anatomical or functional test for suspected coronary disease and conduct stress testing safely, recognising when exercise ECG is the wrong diagnostic tool.
- NICE does not recommend exercise ECG to diagnose stable angina in people without known coronary artery disease.
- Under NICE CG95, CT coronary angiography is first-line when clinical assessment suggests typical or atypical angina.
- Functional imaging tests inducible ischaemia and includes stress echocardiography, stress perfusion CMR, SPECT and PET where available.
- Exercise is preferred over pharmacological stress when the modality permits and the patient can reach an adequate workload safely.
- A test is non-diagnostic if workload, heart-rate response, image quality or tracer response is inadequate.
- Stop for limiting symptoms, significant hypotension or hypertension, serious arrhythmia or diagnostic high-risk ischaemic change.
- Interpret symptoms, workload, haemodynamics, ECG and imaging together; a binary 'positive/negative' label discards risk information.
Key red flags
Ischaemia at low workload, extensive inducible abnormality, exertional hypotension or serious ventricular arrhythmia requires prompt specialist review.
Investigation priorities
Assess exercise capacity, symptoms, blood-pressure response and exercise arrhythmia in selected patients, particularly with known CAD.