The heart's ability to use oxygen efficiently is a critical indicator of its health, but tests to measure this function have ...

"This study presents a novel method for assessing LVEF, an important measure of heart function, during any routine coronary angiography without requiring additional procedures or increasing cost," ...

In a new study, Mayo Clinic researchers found that a novel 4D echo imaging method that measures cardiac strain may detect subtle changes in the heart’s dysfunction during acute myocarditis, a deadly ...

Accurately measuring electrical signals and calcium levels in the heart can lead to earlier treatment of potentially fatal conditions, such as heart attack or congestive heart failure. Calcium plays ...

Heart failure is often diagnosed after patients have already lost much of their function and quality of life, but emerging tools that noninvasively measure heart function may offer new ways to catch ...

Is your heart functioning properly? There is a test which can measure this, which is often recommended by medical ...

A new study from Mass General Brigham researchers reveals that heart rate complexity could serve as an early indicator of cognitive decline in older adults. The research, published in the Journal of ...

Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...

Heart failure is one of the most serious long‑term heart conditions affecting people around the world. It happens when the ...

Long COVID, or post-COVID conditions, refers to a wide range of new or recurrent health problems people may experience after infection with SARS-CoV-2, the virus that causes COVID-19. A host of ...