These findings have been translated into steadily increasing clinical. A substantial number of single-center (13,30,48,49) and multicenter (50,51) studies have confirmed the excellent sensitivity and specificity of myocardial perfusion imaging with vasodilator stress for the detection of CAD. Avoid perfumes, lotions or oils on your chest area. Myocardial Perfusion Imaging for Diagnosis of CAD. Wear a comfortable two-piece outfit avoid wearing dresses, jumpsuits or shirts with metallic buttons or zippers on the chest area. Wear comfortable clothes and running shoes.If you are diabetic please inform your doctor for special instructions.Dipyridamole (Persantine®): Stop taking 48 hours before the test.Nitroglycerin (for example: Minitran®, Nitropatches®, Nitrostat®).Isosorbide mononitrate (for example: Imdur®, ISMO®, Monoket®).Isosorbide dinitrate (for example: Dilatrate®, Isordil®).If you take heart medications: DO NOT take the following heart medications on the day of the test unless your physician tells you otherwise, or unless it is needed to treat chest discomfort the day of the test:.Please plan to bring your asthma inhaler to the test. If you have asthma: Your physician will tell you NOT to take theophylline (Theo-Dur®) for 48 hours before the test.NO beta blockers or calcium channel blockers (unless otherwise instructed by your physician).Bring a list of your medications with you. Ask your physician which medications you can take prior to the exam.No coffee, tea, or cola or other caffeine containing products.
You MAY drink some water or a few sips of juice prior to the test.Have only a light early breakfast 3 hours before the test of a piece of toast or a piece of fruit.After a light lunch the final stress scan will be performed. The exercise treadmill portion of the exam will take place in the cardiac stress lab and is performed by the on staff pediatric cardiologist. Then the radiopharmaceutical will be injected and a resting scan will be performed after a 60 minute wait. First an IV will be placed in a peripheral vein. What can I expect?Īfter registering at patient access you will be directed to the nuclear department in radiology. It is not a dye or iodine contrast and therefore an allergy or reaction is extremely rare. The radiopharmaceutical is a radioactive material. Can I have a reaction to the radiopharmaceutical? A second stress scan is performed following exercise on a treadmill. A resting scan is performed in the morning following an injection of a radiopharmaceutical after an hour wait. The exam is performed in 2 parts and will take 4-5 hours. Evaluates heart-wall movement and overall heart function with a technique called cardiac gating.Evaluates the results of bypass surgery or other revascularization procedures designed to restore blood supply to the heart.Determines the extent of injury to the heart following a heart attack, or myocardial infarction.Evaluates the presence and extent of suspected or known coronary artery disease.In congenital heart disease perfusion imaging also helps assess the impact of anatomical abnormalities. Myocardial perfusion scan helps diagnose cardiac disease and is used to evaluate symptoms of unexplained chest pain or chest pain brought on by exercise, called angina. Why am I having a myocardial perfusion scan? Comparison of the stress and rest images helps detect inadequate blood flow to the heart to determine if there is ischemia or scarring. Imaging is performed at rest and after exercise. The camera is able to detect emissions from the radioactive material taken up by the heart muscle. The heart can then be imaged with a Gamma Camera. A radiopharmaceutical, a radioactive material, is injected through a vein and is taken up by the heart. Myocardial perfusion imaging, also called a nuclear cardiac stress test, helps determine the adequacy of blood flow to the heart. Also known as: Rest-stress myocardial perfusion scan, myocardial perfusion scan, MPI test.
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