Right ventricular ejection fraction measurement: Contrast ventriculography versus gated blood pool and gated first-pass radionuclide methods

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Abstract

Radionuclide methods of measuring the right ventricular (RV) ejection fraction (EF) provide noninvaslve means of evaluating right-sided cardiac function at rest and exercise. This study compared 2 radionuclide methods with a cast-validated contrast anglographic method of RVEF analysis in 21 consecutive patients who underwent RV contrast ventriculography and gated equilibrium blood pool radionuclide ventriculography. Eleven subjects had gated first-pass radionuclide studies that were technically adequate for EF analysis. RVEF was calculated by different operators for the contrast and radionuclide methods. The close correlation of the contrast angiographic method with both equilibrium blood pool and first-pass radionuclide methods supports the use of the radionuclide techniques.

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