Researchers at Cedars-Sinai have developed a new MRI-based technique that could provide a faster and less invasive way to measure how efficiently the heart uses oxygen, an important indicator of cardiovascular health. The technology, described in Science Translational Medicine, is designed to assess heart oxygen consumption without the need for catheterization, a procedure that is currently considered the gold standard but is too invasive for routine monitoring. Because impaired oxygen utilization is often an early sign of heart failure, the new approach could eventually support earlier detection and more proactive management of the condition.
Traditional methods for measuring cardiac oxygen use require threading a catheter into the heart and often involve lengthy procedures, contrast dyes and specialized monitoring. Standard MRI techniques also face limitations because they require multiple scans and patient breath-holding to compensate for heart motion. The Cedars-Sinai team developed a system that overcomes these challenges by accounting for cardiac movement during imaging, allowing patients to breathe normally while producing quantitative measurements in just a few minutes. Researchers validated the approach by comparing MRI-based results with readings obtained through catheterization in patients with and without heart failure.
The technology could have implications beyond diagnosis, potentially helping clinicians monitor disease progression, evaluate treatment response and identify high-risk patients before symptoms emerge. Researchers believe the noninvasive nature of the method may also expand opportunities for cardiac research by enabling studies in larger and less severely ill populations without exposing participants to invasive procedures. As heart failure continues to affect millions of people worldwide, the development highlights ongoing efforts to use advanced imaging technologies to improve early detection and personalized cardiovascular care.
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