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 Cardiac Diagnostics

Cardiac Diagnostics - Mississauga Hospital and Queensway Health Centre

Often, people begin to experience symptoms that indicate a heart problem. Common complaints include heaviness or burning in the chest, arms, neck, or jaw; shortness of breath; and heart palpitations. However, the only way to know for sure

Mississauga Hospital and Queensway Health Centre offers the following non-invasive cardiac diagnostic services.

  • Echocardiography
  • Nuclear cardiology testing
  • Holter monitoring
  • Cardiac stress tests

Procedures are conducted in the newly renovated cardiac diagnostic suites that feature state-of-the-art equipment.


An echocardiography or 'echo' is an ultrasound of the heart and shows how strongly a person's heart muscle is moving as well as how the blood flows through the heart and valves.

For patients undergoing an echo on an outpatient basis, the test takes approximately one hour.

For cardiac inpatients, Mississauga Hospital and Queensway Health Partners now offers post discharge echo appointments. Patients able to be discharged from hospital, but needing an echocardiogram don't have to wait in hospital for an appointment any more. Patients are now sent home with a pre-booked echo appointment for as early as 24 hours after discharge.

Nuclear Cardiology Testing

This special type of exercise test looks at the flow of blood to the heart muscle and shows if the heart is damaged. During the test, a tiny amount of radioactive material is inserted into a vein and photos are taken of the heart immediately following the exercise as well as a few hours later. If an individual is not able to exercise, a drug called Persantine is used to open up the veins and arteries allowing the physician to examine the flow of blood to the heart as if exercise is occurring.

Holter Monitoring

If a person is suspected of experiencing irregular heart rhythms, a holter monitor can help determine if the person does indeed have an irregular heart rhythm. The person wears the monitor for 24 hours while carrying on with routine activities. When the monitor is returned to the Health Centre, the tape inside the monitor will contain the information the physician needs to make a treatment decision. Sometimes medication or a pacemaker is prescribed. Other times the decision is made not to do anything.

Cardiac Stress Tests

This test determines if a person's heart is receiving enough blood and oxygen during exercise. Patients exercise by walking on a treadmill while the heartbeat and blood pressure are measure.