Early quantitative stress-perfusion cardiac magnetic resonance reveals perfusion abnormalities consistent with coronary microvascular dysfunction in MINOCA patients with otherwise normal cardiac magnetic resonance findings. (PubMed, Sci Rep) - Sep 1, 2026 - "All participants underwent dual-sequence first-pass perfusion CMR at rest and during regadenoson stress...43% of MINOCA patients had quantitative perfusion findings consistent with CMD according to previously proposed CMR thresholds, compared with none of the controls. In conclusion, early Q-CMR identifies reduced stress MBF and MPR in MINOCA patients with otherwise normal conventional CMR findings and reveals perfusion abnormalities consistent with CMD in nearly half of these patients, suggesting that microvascular dysfunction may contribute to myocardial injury in a subset of MINOCA patients."
Journal • Cardiovascular • Coronary Artery Disease • Myocardial Infarction
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Andrei Malinovschi; Anne-Marie Montelius; Bertil Lindahl; Joel Lenell; Johan Berglund; Karl-Henrik Grinnemo; Ramin Sahar; Tomasz Baron
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