Search Page

In venous insufficiency, the valves in the veins have become damaged. These valves normally keep blood flowing toward the heart

A venous skin ulcer is a shallow wound that develops when the leg veins do not move blood back toward the heart normally. Most

An electrocardiogram (EKG, ECG) is a test that measures the electrical signals that control heart rhythm. The test measures how

Normally when you walk, your foot lands on the outer side of the heel first. Your weight then passes along the inner edge of the

Courtesy of Intermountain Medical Imaging, Boise, Idaho. Figure 1 is a PET scan that shows normal activity in a healthy brain

Positron emission tomography (PET) is a test that uses a special type of camera and a tracer (radioactive substance) to look at

The aorta stems from the heart, arches upward (the aortic arch), and then extends down behind the heart and through the chest (the

The aortic valve has three flaps that work like a one-way gate. When the heart pumps, the aortic valve opens to allow oxygen-rich

In aortic valve regurgitation, the aortic valve does not close completely. The valve lets blood leak back (regurgitate) into the

The medicine is injected directly into the left or right side of the penis at a 90-degree angle. This puts the medicine directly