The first heart sound, or S1, is the "lub" of a normal heartbeat. It's a high-pitched sound that occurs at the beginning of ...

To be able to observe the blood flow in the artificial heart in real time in the MRI, the researchers an Linköping University had to build a full-scale model of the human circulatory system. Using ...

Vasodilators allow blood to flow more easily through your veins and arteries by relaxing the tiny muscles found in blood vessel walls. Research indicates that ingesting cayenne pepper increases ...

Aortic stenosis is a narrowing of the aortic valve that affects how blood flows through the heart and body. While not often linked to heart valve narrowing, high and irregular blood pressure can ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...

A heart perfusion imaging scan, or myocardial perfusion scan, is a test that tells doctors how well a person’s heart pumps blood. Doctors may use this test when diagnosing the cause of chest pain or ...

Heart valve diseases affect how blood flows through the heart muscle. Not all people experience symptoms, even if the condition is severe. You may recognize these early signs and symptoms of heart ...

When a doctor listens to someone's heartbeat, they typically hear a characteristic sound: "lub-dub, lub-dub." In some people, though, this two-tone heartbeat is accompanied by whooshing or rasping ...

The British Heart Foundation (BHF) has announced the winner of its annual Reflections of Research science image competition. This asks BHF-funded scientists to highlight their research into heart ...

Filip Hammaréus, PhD student, and Petter Dyverfeldt, professor, at Linköping University. The research was performed at the Center for Medical Image Science and Visualization in Linköping, Sweden.

For people with advanced heart failure, left ventricular assist devices, or LVADs, can be a literal lifesaver. The implantable devices, which improve blood flow throughout the body, are often the last ...