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 ...

Heart valves allow blood to flow one way and prevent it from flowing in the wrong direction. The tricuspid valve controls blood flow between the right atrium and right ventricle. The bicuspid or ...

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 ...

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 ...

An aortic stenosis murmur is an unusual sound the heart makes due to a narrowing of the aortic heart valve. The narrowed heart valve restricts blood flow from the heart, which can create a murmur.

An electrocardiogram and echocardiogram (echo) are both noninvasive imaging tests that look at the functioning of your heart and can help identify heart disease. An electrocardiogram (EKG or ECG) and ...

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 ...

Elisa E. Konofagou is in the Departments of Biomedical Engineering and Radiology, Columbia University, New York, New York 10027, USA. This task is not trivial. The required resolution is on the order ...