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MR Myocardial Perfusion Imaging & MRI Heart
Magnetic Resonance Myocardial Perfusion Imaging

Magnetic resonance myocardial perfusion imaging (stress CMR) is a non-invasive cardiac imaging scan to evaluate the blood flow (perfusion) to heart muscles (myocardium) using medication such as adenosine.

What is the purpose of doing this test?

Stress CMR is frequently used to evaluate patients who have symptoms of chest pain or breathlessness in order to assess for ischemia in the heart muscle (a condition where the heart muscle is starved of oxygen and other nutrients which are required to keep tissue alive due to inadequate blood supply as a result of blocked or narrowed arteries). In addition, it is also used to evaluate for the physiologic significance of the coronary artery lesions as identified by CT coronary angiography or invasive coronary angiography in order to determine whether patients should be treated medically or require revascularization with coronary artery stenting or coronary artery bypass surgery. Besides, myocardial infarction (heart muscle damage) due to underlying coronary artery disease can also be identified.

According to ACCF/AHA/ASE/ASNC/HFSA/HRS/SCAI/SCCT/SCMR/STS 2013 Multimodality Appropriate Use Criteria for the Detection and Risk Assessment of Stable Ischemic Heart Disease, stress CMR can be considered in patient who is symptomatic and for patient who is unable to exercise with uninterpretable ECG. It is appropriate to use stress CMR to evaluate patients who have newly diagnosed systolic or diastolic heart failure, ventricular arrhythmias, abnormal resting ECG suggestive of coronary artery disease, abnormal exercise ECG test, obstructive coronary artery disease or coronary artery stenosis of uncertain significance on CT coronary angiography study or invasive coronary angiography.

heart doctor in singapore