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Cardiac ventriculography

File:Takotsubo ventriculography.gif
Left ventriculography during systole showing apical ballooning akinesis with basal hyperkinesis in a patient with takotsubo cardiomyopathy.

Cardiac Ventriculography is a medical imaging test used to determine a patient's cardiac function in the right, or more typically, left ventricle. Cardiac ventriculography involves injecting contrast media into the heart's ventricle(s) to measure the volume of blood pumped. Cardiac ventriculography can be performed with a radionuclide in radionuclide ventriculography or with an iodine-based contrast in cardiac chamber catheterization.

The 3 major measurements obtained by cardiac ventriculography are:

  1. Ejection Fraction
  2. Stroke Volume
  3. Cardiac Output

Radionuclide ventriculography

Radionuclide ventriculography is a form of nuclear imaging, where a gamma camera is used to create an image following injection of radioactive material, usually Technetium-99m (99mTc).

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