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  2. Cardiac stress test - Wikipedia

    en.wikipedia.org/wiki/Cardiac_stress_test

    A nuclear stress test uses a gamma camera to image radioisotopes injected into the bloodstream. The best known example is myocardial perfusion imaging. Typically, a radiotracer (Tc-99 sestamibi, Myoview or thallous chloride 201) may be injected during the test. After a suitable waiting period to ensure proper distribution of the radiotracer ...

  3. Myocardial perfusion imaging - Wikipedia

    en.wikipedia.org/wiki/Myocardial_perfusion_imaging

    Using nuclear cameras of the day and given the limitations of Tl-201, the first "stress" image could not be taken until 1 hour after "stress". In keeping with the concept of comparison images, the second "stress" image was taken 4 hours after "stress" and compared with the first.

  4. Technetium-99m - Wikipedia

    en.wikipedia.org/wiki/Technetium-99m

    The underlying principle is, under conditions of stress, diseased myocardium receives less blood flow than normal myocardium. MPI is one of several types of cardiac stress test. As a nuclear stress test, the average radiation exposure is 9.4 mSv, which when compared with a typical 2 view chest X-ray (.1 mSv) is equivalent to 94 Chest X-rays. [83]

  5. Gated SPECT - Wikipedia

    en.wikipedia.org/wiki/Gated_SPECT

    Gated SPECT is a nuclear medicine imaging technique, typically for the heart in myocardial perfusion imagery. [1] An electrocardiogram (ECG) guides the image acquisition, and the resulting set of single-photon emission computed tomography (SPECT) images shows the heart as it contracts over the interval from one R wave to the next.

  6. Daughter thought her mom was having a stroke because of ... - AOL

    www.aol.com/news/daughter-thought-her-mom-having...

    When Chris Kirmsse couldn’t complete a nuclear stress test this fall because her blood pressure was too high, she had to monitor it at home. Her daughter, Christine Kirmsse, a travel nurse ...

  7. Radionuclide angiography - Wikipedia

    en.wikipedia.org/wiki/Radionuclide_angiography

    As the gamma camera images are acquired, the patient's heart beat is used to 'gate' the acquisition. The final result is a series of images of the heart (usually sixteen), one at each stage of the cardiac cycle. [citation needed] Depending on the objectives of the test, the doctor may decide to perform either a resting or a stress MUGA.

  8. Exclusive: Satellite images show increased activity at ... - AOL

    www.aol.com/news/exclusive-satellite-images-show...

    Russia, the United States and China have all built new facilities and dug new tunnels at their nuclear test sites in recent years, satellite images obtained exclusively by CNN show, at a time when ...

  9. Nuclear medicine - Wikipedia

    en.wikipedia.org/wiki/Nuclear_medicine

    Nuclear medicine (nuclear radiology, nucleology), [1] [2] is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease. Nuclear imaging is, in a sense, radiology done inside out , because it records radiation emitted from within the body rather than radiation that is transmitted through ...