Multiple-gated Acquisition Research Articles

Surgical Results of Anomalous Left Coronary Artery

After undergoing a ligation of the anomalous left coronary artery from the pulmonary artery and a saphenous vein bypass graft surgery, a 53-year-old woman has had improvement in exercise tolerance and congestive heart failure for up to two years of follow-up. Comparison of the preoperative and postoperative noninvasive studies disclose that surgery improved the left ventricular volume overload and perfusion. However, there was no change in the resting or exercise ejection fraction as assessed by stress multiple-gated acquisition isotope scan.

Surgical results of anomalous left coronary artery

• After undergoing a ligation of the anomalous left coronary artery from the pulmonary artery and a saphenous vein bypass graft surgery, a 53-year-old woman has had improvement in exercise tolerance and congestive heart failure for up to two years of follow-up. Comparison of the preoperative and postoperative noninvasive studies disclose that surgery improved the left ventricular volume overload and perfusion. However, there was no change in the resting or exercise ejection fraction as assessed by stress multiple-gated acquisition isotope scan. (<i>Arch Intern Med</i>1983;143:385-386)

Cardiac Function and Hemodynamic Parameters After Pentaerythritol Tetranitrate: Assessment by a Noninvasive Radionuclide Technique

The availability of a relatively small computer with programming providing multiple-gated acquisition capability (MUGA) permits the measurement of ejection fraction and evaluation of ventricular wall motion without the need for invasive techniques. It is probable that the various nitrates available--nitroglycerin, PETN, and isosorbide dinitrate--have somewhat different hemodynamic effects, and that the radionuclide technique can assist in determining these differences and may help to predict which agents might be most appropriate in specific situations.