A nuclear stress test is also known as nuclear cardiac imaging. It is used to measure the blood flow to the heart when the patient is at rest and after doing an activity such as exercising. It produces images of the heart’s chambers, shows the functioning of the heart and whether any of the heart’s arteries have any blockages or damages.
It is similar to the exercise stress test, except the patient is given a harmless amount of a radioactive substance just before the end of the nuclear exercise testing part.
A nuclear stress test involves injecting a radioactive tracer, which is not harmful to your body or organs. Next, a state-of-the-art gamma camera is used to detect the radiation released by the tracer to produce images of the heart on a monitor. Two sets of images of your heart will be taken, one in which you are at rest and another after exercise.
It is usually performed along with an exercise stress test, where the patient is required to walk on a treadmill.
During the nuclear stress test, the radioactive substance that acts as a “dye” can give physicians more accurate information about the size of a heart’s muscles. It has an estimated 85% accuracy rate in determining coronary diseases and blockages in the arteries. At LI Medical Group, we employ advanced technology at our state-of-the-art facility for highly accurate results.
If you need nuclear stress testing, schedule a consultation with our healthcare experts!
The nuclear stress test may take 2-4 hours, including time taken for preparation before the testing. Although the actual exercising part usually only takes 7-12 minutes. The scans and the time it takes for the radioactive substance to reach the heart may take around 60 minutes.