Tag: Imr

According to a study published in *Circulation: Cardiovascular Interventions*, the Index of Microcirculatory Resistance (IMR) provides a reproducible and independent assessment of coronary microcirculation. This invasive diagnostic tool is essential for accurately evaluating heart health. So, **what is the measurement of IMR**, and what role does it play in modern cardiology?

According to the National Institutes of Health, over 90% of a heart's blood flow resistance occurs in the tiny microvessels. The Index of Microcirculatory Resistance (IMR) is a quantitative measurement used in cardiology to assess the functional status of these small, hard-to-visualize branches of the coronary arteries.

Globally, millions of babies still die before their first birthday, making infant mortality a critical metric for public health experts. Understanding what is the function of the IMR is crucial for assessing a nation's overall health and well-being, highlighting areas where healthcare systems need improvement.