Non-Invasive MRI Test for Early Heart Failure Detection

A research team led by Cedars-Sinai Health Sciences University has developed a high-resolution, motion-resolved MRI method that may allow for the early detection of heart failure by rapidly measuring the heart’s oxygen consumption.

The measurement of myocardial oxygen consumption serves as a critical indicator of cardiac health. When the heart cannot properly receive or utilize oxygen, heart tissue can sustain damage, which may eventually contribute to the development of heart failure.

This development is particularly significant given that one in four individuals are likely to develop heart failure during their lifetime.

Overcoming the Limitations of Invasive Testing

Until now, the gold standard for determining how much oxygen the heart consumes has been cardiac catheterization. This procedure requires clinicians to thread a catheter from a patient’s groin or neck into the coronary sinus, which is the largest vein in the coronary system.

While accurate, cardiac catheterization is highly invasive and time-consuming. The procedure also carries a level of inherent risk for the patient, creating a need for a safer, more efficient diagnostic alternative.

The new MRI technique offers a non-invasive alternative that can assess the oxygen consumption of the heart in approximately three minutes.

The Science of BOLD Signaling

The new method leverages the blood oxygen level-dependent (BOLD) signal. This specific MRI sensitivity to blood oxygenation was originally developed to map activity within the brain.

By applying this technology to the heart, researchers can identify abnormal myocardial oxygen consumption, which acts as a marker for potential cardiac dysfunction. This allows for the identification of issues before they progress into full heart failure.

Study Results and Validation

The findings were reported in the journal Science Translational Medicine. To validate the new method, the international research team conducted an initial study involving 22 patients diagnosed with heart failure.

During the study, the team evaluated the performance, feasibility, repeatability, and accuracy of the MRI technique. The results demonstrated the method’s ability to provide reliable measurements of heart oxygen consumption.

The research was led by Hsin-Jung Yang, who serves as the director of cardiac imaging research in the Biomedical Imaging Research Institute at Cedars-Sinai Medical Center.

By providing a rapid and non-invasive way to monitor heart health, this MRI method could facilitate earlier intervention and treatment for patients at risk of cardiac dysfunction.