Diagnostic Testing

Our experts your first step to better health through the accurate diagnosis of your condition.
The echocardiography laboratory at the Columbia University Division of Cardiology at Mount Sinai is accredited by the Intersocietal Commission for the Accreditation of Echocardiography Laboratories (ICAEL), and is arguably the best in the region We perform approximately 6,100 transthoracic and 1,500 transesophageal studies annually. Our team of experts, all board certified in cardiology and echocardiography, utilizes the latest technology, including 3-dimensional imaging, to make even the most difficult diagnoses via noninvasive techniques.


Angiography (also known as an Angiogram) is the x-ray visualization of the internal anatomy of the heart and blood vessels after the intravascular introduction of radioopaque contrast medium (dye). This technique can be used to look at arteries in many areas of the body, including the brain, neck, heart, chest, pulmonary circuit, kidneys, and limbs.

Ankle Brachial Index (ABI)

ABI is the ratio of systolic blood pressure at the ankle to the systolic blood pressure in the arm, and it is used to diagnose Peripheral Artery Disease (PAD).
A blood pressure in the legs that is less than 90 percent of the blood pressure in the arms suggests blocked arteries and PAD.

Advanced Lipid Profile

The lipid profile is a group of tests that are often ordered together to determine risk of coronary heart disease by testing cholesterol levels. They are tests that have been shown to be good indicators of whether someone is likely to have a heart attack or stroke caused by blockage of blood vessels or hardening of the arteries.

Cardiac Calcium Scoring

A cardiac calcium score test, also known as a heart scan, is a test that measures the amount of plaque plaque buildup in the coronary arteries. Calcium buildup found in the arteries is a sign of coronary heart disease. A CT scan is used in this test.

Cardiac Catherization

This is a procedure to examine blood flow to the heart and test how well the heart is pumping. A thin plastic tube is inserted into an artery or vein in the arm or leg. From there it can be advanced into the chambers of the heart or into the coronary arteries. This test can measure blood pressure within the heart and how much oxygen is in the blood. It is also used to get information about the pumping ability of the heart muscle.

Cardiac MRI

Cardiovascular magnetic resonance imaging (CMR), also known as a cardiac MRI, is a medical imaging technology for the non-invasive assessment of the function and structure of the cardiovascular system. It is derived from and based on the same basic principles as Magnetic Resonance Imaging (MRI), but with optimization for use in the cardiovascular system.

Carotid IMT (CIMT)

Carotid duplex imaging is used to measure intima-media thickness (IMT), a measure of subclinical cardiovascular disease (CVD), which has been shown to correlate with CVD risk factors. An ultrasound machine is typically used for this test.

Carotid Ultrasound

A carotid ultrasound is a non-invasive ultrasound method used to examine blood circulation. An ultrasound of the body’s two carotid arteries, which are located on each side of the neck and carry blood from the heart to the brain, provides detailed pictures of these blood vessels and information about the blood flowing through them.

Chest X-Ray

A chest X-ray is a radiology test that involves exposing the chest briefly to radiation to produce an image of the chest and the internal organs of the chest. An X-ray film is positioned against the body opposite the camera, which sends out a very small dose of a radiation beam.

CT Coronary Angiogram

CT coronary angiogram is a noninvasive test of the heart. The procedure uses an intravenous dye and CT scanning to image the coronary arteries. CT coronary angiogram is a major tool in the diagnosis of coronary artery disease.

Echo Stress Test

A supplement to the routine exercise cardiac stress test. During stress echocardiography, the sound waves of ultrasound are used to produce images of the heart at rest and at the peak of exercise.

Echocardiogram (EKG)

Echocardiograms are obtained by reflecting high frequency sound waves (ultrasound) off various structures of the heart, then translating the reflected waves into images.

Heart Scan

A CAT scan uses x-rays to do detailed images of internal body structures and, in this case, the arteries of your heart. In addition, it can look at the heart itself to see if there are any abnormalities of the muscles, valves, or the outer lining of the heart. CAT scans of the heart can recognize early blockages within arteries of the heart and therefore may save lives.

Holter Monitor

The Holter monitor is a small portable electrocardiogram (ECG). The device is worn in a pouch around the neck or waist. It keeps a record of the heart rhythm, typically over a 24-hour period, while the patient keeps a diary recording their activities and any symptoms they may feel.

Nuclear Stress Test

A nuclear stress test measures blood flow to the heart muscle at rest and during stress. It is performed similarly to a routine exercise stress test but provides more images than electrocardiograms. A mild radioactive liquid is pumped into the patient’s circulatory system in this test.