Magnetic resonance imaging (MRI, also called magnetic resonance tomography) is an imaging method without X-rays. Using very strong magnetic fields and electromagnetic alternating fields in the radio frequency range, images are recorded from inside the body.
With a cardiac stress MRI, circulation of the heart musculature at rest and under stress can be evaluated and possibly reduced supply of blood to the heart muscle can be established. While doing so, heart strain is simulated by the administration of adenosine, a medication, which increases blood flow for a short time.
In addition, in the same examination, the pumping function of the heart and the size of the heart chambers can be assessed, as can scarring from possible earlier heart attacks with additional dosing with contrast media.