compared with patients with normal lung uptake , those with increased uptake had a greater prevalence of prior infarction ( 13 versus 36 percent , probability [ p ] less than 0.05 ) , less global cardiac reserve as assessed by the four level new york heart association classification ( p less than 0.05 ) , more advanced killip class in the coronary care unit ( p less than 0.05 ) , a higher norris coronary prognostic index ( 2.6 +/- 1.9 versus 4.6 +/- 2.3 [ mean +/- standard deviation ] , p less than 0.01 ) , failure to achieve the target heart rate because of dyspnea , fatigue or angina ( 36 versus 86 percent , p less than 0.01 ) , a greater prevalence of exercise-induced s-t segment depression ( 18 versus 45 percent , p less than 0.05 ) , a greater number of anterior thallium-201 myocardial defects ( p less than 0.05 ) ;
C0018787
cardiac
C0027061
myocardial