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  • perfusion
  • In the ventilation phase of a ventilation/perfusion scan, a gaseous radionuclide xenon or technetium DTPA in an aerosol form (or ideally using Technegas, a radioaerosol invented in Australia by Dr Bill Burch and Dr Richard Fawdry) is inhaled by the patient through a mouthpiece or mask that covers the nose and mouth. (wikipedia.org)
  • The perfusion phase of the test involves the intravenous injection of radioactive technetium macro aggregated albumin (Tc99m-MAA). (wikipedia.org)
  • tissue
  • Here, the premise was that restoration of blood flow to viable ischemic tissue will result in restoration of oxidative metabolism and, therefore, normal contractile function. (onlinejacc.org)
  • To detect metastases/function of thyroid, the isotopes iodine-131 or technetium-99m is generally used, and for this purpose the iodide isotope does not need to be attached to another protein or molecule, because thyroid tissue takes up free iodide actively. (wikipedia.org)
  • gamma
  • The subjects are injected with special radionuclides which irradiate in the gamma range inside the region of interest, such as the heart or the brain . (wikipedia.org)
  • stress
  • Following this, the heart rate is raised to induce myocardial stress, either by exercise or pharmacologically with adenosine, dobutamine or dipyridamole (aminophylline can be used to reverse the effects of dipyridamole). (wikipedia.org)
  • noninvasive
  • It is a safe, noninvasive, and reproducible test applicable at bedside that provides valuable information on the anatomy and function of the heart. (hindawi.com)
  • study
  • In Addition, a Determination of the Safety of Sestamibi Will be Evaluated at the End of the Study Through Adverse and Serious Adverse Events Reported and Evaluating Vital Signs, ECGs, Physical Exams and Laboratory Tests for Each Subject. (clinicaltrials.gov)
  • blood flow
  • Various mathematical models can then be used to process the raw temporal data to ascertain quantitative information such as rate of cerebral blood flow (CBF) following an ischemic stroke or aneurysmal subarachnoid hemorrhage. (wikipedia.org)
  • drug
  • The drug is a coordination complex consisting of the radioisotope technetium-99m bound to six (sesta=6) methoxyisobutylisonitrile (MIBI) ligands. (wikipedia.org)
  • center
  • In short, a striking system of checks and balances regulates contractile function in the heart and metabolism is at the center of the whole system. (onlinejacc.org)
  • reduce
  • 7 Although the existence of lethal reperfusion injury has been much debated, 8 Zhao et al 9 recently demonstrated in the dog model that repetition of brief episodes of ischemia immediately at the onset of reperfusion after a prolonged ischemic insult can dramatically reduce infarct size. (ahajournals.org)