Ejection fraction is a measurement of the percentage of blood
leaving your heart each time it contracts.
Signs and Tests:
Ejection fraction can be measured with imaging techniques,
- Echocardiogram. During an echocardiogram, sound waves are
used to produce images of your heart and the blood pumping
through your heart.
- Cardiac catheterization. During cardiac catheterization, a
thin, plastic tube (catheter) is inserted into a vein in the arm
or leg and then moved to the heart - most likely the left
ventricle. Using images taken during the catheterization, your
doctor can see how your blood pumps through your heart.
- Magnetic resonance imaging (MRI). During an MRI scan, a
magnetic field and radio waves are used to create cross-sectional
images of specific parts of the body. When an MRI is used to
study the heart, it's known as a cardiovascular MRI.
- Computerized tomography (CT). During a CT scan, a special
X-ray technique is used to create cross-sectional images of
specific parts of the body. When a CT scan is used to study the
heart, it's known as a cardiac CT.
- Nuclear medicine scan. During a nuclear scan, trace amounts
of radioactive material - such as thallium - are injected into
the bloodstream. Special cameras then detect the radioactive
material in your blood as it flows through the heart and lungs.
Texas Health is committed to providing quality care to heart
and vascular patients throughout North Texas and beyond. While
various technologies and services are discussed here, not all of
our hospitals offer every treatment and diagnostic technology
highlighted. Call 1-877-THR-WELL to learn more about heart and
vascular services at a Texas Health hospital near you.