INDICATIONS:,  Atrial fibrillation, coronary disease.,STRESS TECHNIQUE:, The patient was infused with dobutamine to a maximum heart rate of 142.  ECG exhibits atrial fibrillation.,IMAGE TECHNIQUE:,  The patient was injected with 5.2 millicuries of thallous chloride and subsequently imaged on the gated tomographic SPECT system.,IMAGE ANALYSIS:,  It should be noted that the images are limited slightly by the patient's obesity with a weight of 263 pounds.  There is normal LV myocardial perfusion.  The LV systolic ejection fraction is normal at 65%.  There is normal global and regional wall motion.,CONCLUSIONS:,1.  Basic rhythm of atrial fibrillation with no change during dobutamine stress, maximum heart rate of 142.,2.  Normal LV myocardial perfusion.,3.  Normal LV systolic ejection fraction of 65%.,4.  Normal global and regional wall motion.cardiovascular / pulmonary, dobutamine stress test, atrial fibrillation, lv myocardial perfusion, lv systolic ejection fraction, coronary disease, dobutamine, ejection fraction, gated tomographic spect system, thallous chloride, wall motion, stress, fibrillation, atrial 