Offered at Our 5301 Vernon Ave. S. Location
Test with Myocardial Perfusion Imaging
A treadmill myocardial perfusion test is a nuclear medicine imaging
procedure, ordered by your physician. It is used to evaluate the
coronary artery blood supply to your heart muscle. Using a specialized
camera, images of your heart are obtained when your heart is at rest and
then again after a treadmill stress test. A radiologist and cardiologist
will compare both sets of images to determine if you have any narrowing
or blockage of the arteries on your heart.
You will check in at our main reception desk. The test will take
approximately 3 hours. You will be able to drive after the test. There
are no lasting side effects from this test.
Candidates For This Test:
Any patient who, under the assessment of your physician, has had one or
more of the following:
Shortness of Breath
Previous Heart Attack
Previous Angioplasty or Stent Placement
The patient may have one or more risk factors for developing heart
disease such as: Hypertention, High Cholesterol, Diabetes, Smoking,
Obesity or a Family History of Heart Disease.
IMPORTANT CANCELLATION INFORMATION:
It is very important to contact clinic scheduling 24 hours prior to your
exam at 952-925-2200 in the event of a cancellation. The imaging agents
that are ordered for your exam are specifically tailored for you. thus,
they are expensive and they need to be cancelled the day prior to your
Absolutely NO caffeine for 24 hours is allowed prior to your test. This
includes all of the following: COFFEE, DECAFFEINATED COFFEE, TEA, SODA
(including those labeled "caffeine free"), CHOCOLATE, HOT COCOA. ALSO
medications containing caffeine such as Anacin and Excedrin have to be
If you take a BETABLOCKER (Atenolol, Metoprolol, Propranolol etc.) DO
NOT take it the evening before or the morning of your test unless you
have been instructed otherwise by your physician. Take all of your other
medications as usual.
Wear comfortable clothing, including a short sleeved shirt if possible.
Be sure there are NO METAL snaps, buttons, zippers or decorations near
the chest area. Wear shoes that are appropriate for walking on a
DO NOT SMOKE until the test is
You may have a light breakfast on the morning of your exam (toast, milk,
juice, fruit, etc.) Again, NO CAFFEINE.
Part 1: After registering, a nuclear medicine technologist or
nurse will start an IV. Then a small amount of a radioactive tracer
(Thallium) will be injected into your IV. Next, you will lie down on the
scanning table. You will need to raise your left arm over your head and
keep it still. The technologist will do as much as possible to make you
comfortable. Then the camera will take the resting scan of your heart.
The scan takes 22 minutes.
Part 2: When your 1st scan is complete, you will be directed to
the stress test waiting area where you may have a short wait. Next,
electrodes will be placed on your chest, and you will be connected to
the cardiac monitor to record your heart rhythms before, during and
after the stress test. You will then walk on a treadmill which will get
faster and increase in elevation every few minutes. Your blood pressure
will be taken periodically as well. The nuclear technologist will inject
a second radioactive tracer (Myoview) about a minute from the end of
your treadmill test. Once the treadmill has stopped and you have
recovered, you will be sent back to the scanner for Part 3.
Part 3: Upon returning to the scanner, your IV will be removed.
You will lie down on the scanning table and be positioned in the same
manner as you were during the first scan. The only difference is that
you will be hooked up to 3 electrodes that were left on your chest from
your stress test. The second scan takes 22 minutes. When your scan is
complete, you will be allowed to leave. There are no restrictions and
you may resume normal activities. Resume taking any medications you held
prior to your exam.
After your Exam:
The physician who ordered your test
will receive results of the exercise portion of your test the day of
your study. The nuclear images are sent to Abbott Northwestern Hospital
electronically, where they are interpreted by a radiologist and
cardiologist. your physician should have the results of the scans within
The radiation dose your body received from the 2 radiotracer
injections is comparable to that of a CAT (CT) scan.
Content provided by
Minneapolis Heart Institute