Background Chronic total occlusion (CTO) often triggers collateral coronary development, yet the relationship between ...

An angiogram is a type of x-ray that shows your blood vessels. A brain angiogram shows the blood vessels in your brain. It also shows how blood flows through them. A specialist doctor called a ...

Sleep breathing disorders (SBDs)—including obstructive sleep apnoea, central sleep apnoea and sleep-related hypoventilation syndromes—represent a major yet under-recognised contributor to global ...

What is MRI of the heart? Magnetic resonance imaging (MRI) is a test that uses a large magnet, radio signals, and a computer to make images of organs and tissue in the body. In this case, the heart is ...