69. Regarding equilibrium gated blood pool radionuclide ejection fraction (EF) measurements, which of the following is (are) true?
(X-type question - select all correct answers)
A) If background region of interest (ROI) is too close to spleen or descending aorta, the EF will be overestimated.
B) Inclusion of the left atrium in the left ventricular ROI will underestimate the EF.
C) Atrial fibrillation will tend to underestimate the EF.
D) An anteroapical aneurysm will tend to underestimate the EF.
