• Fraction
  • It was recently approved for the treatment of symptomatic chronic heart failure in patients with a reduced left ventricular ejection fraction. (escardio.org)
  • Significant improvement in left ventricular ejection fraction in eight weeks and one year in hydralazine/isosorbide dinitrate group but not placebo or prazosin. (acc.org)
  • Alternative methods for selecting the ventricular axis, calculating regional ejection fraction and choosing the number of ventricular divisions were studied In 15 normal volunteers to select the combination of parameter that produced the lowest variability in quantitative regional ejection fraction. (onlinejacc.org)
  • Methods for quantitative comparison, of regional ejection fraction with normal limit files and for display in the bull's-eye format were also examined. (onlinejacc.org)
  • A floating axis system (axis defined individually for end-diastole and end-systole and realigned at the center) gave more uniform regional ejection fraction: 63 ±6 versus 64 ± 8 (p = NS) at the midcavity and 44 ± 16 versus 45 ± 15 (p = NS) at the base. (onlinejacc.org)
  • The coefficient of variability for regional ejection fraction was consistently lower using a floating axis. (onlinejacc.org)
  • Calculating regional ejection fraction by dividing the regional stroke volume by the enddiastollc volume of the region gave a lower coefficient of variability and a more easily understood value than dividing the regional stroke volume by the total end-diastolic volume of the ventricle. (onlinejacc.org)
  • Gated blood pool tomography performed using a floating axis system, regional stroke volume calculation of ejection fraction and nine regions uses all the three-dimensional blood pool data to calculate regional ejection fraction, allow quantitative comparison with normal limit tiles, display the functional data in the two-dimensional bull's-eye format and demonstrate abnormalities in patients with myocardial infarction. (onlinejacc.org)
  • left
  • In the right bottom panel of the Figure, where the decreased E es (1.1 mm Hg/cm 2 ) was demonstrated after PLV, the end-systolic pressure-area line did not connect the end-systolic points (left upper corner) of each loop but connected early ejection phase (right upper corner) of each loop. (ahajournals.org)