Normal values of regional left ventricular endocardial motion: multicenter color kinesis study

Am J Physiol Heart Circ Physiol. 2000 Nov;279(5):H2464-76. doi: 10.1152/ajpheart.2000.279.5.H2464.

Abstract

Our goal was to establish normal values for quantitative color kinesis indexes of left ventricular (LV) wall motion over a wide range of ages, which are required for objective diagnosis of regional systolic and diastolic dysfunction. Color-encoded images were obtained in 194 normal subjects (95 males, 99 females, age 2 mo to 79 yr) in four standard views. Quantitative indexes of magnitude and timing of systolic and diastolic function were studied for age- and gender-related differences. Normal limits of all ejection and filling indexes were in a narrow range (< or =25% of the mean), with no major gender-related differences. Despite invariable ejection fractions, both peak filling and ejection rates decreased with age (30 and 20%, correspondingly) with a concomitant increase in mean filling and ejection times, resulting in five- and twofold increases in the late to early filling and ejection ratios, correspondingly. Diastolic asynchrony increased with age (from 4.7 +/- 2.0 to 6.4 +/- 3.2 from the 2nd to 7th decade). The normal values of color kinesis indexes should allow objective detection of regional LV systolic and diastolic dysfunction.

Publication types

  • Clinical Trial
  • Multicenter Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Age Distribution
  • Aged
  • Aging / physiology
  • Child
  • Child, Preschool
  • Diastole / physiology
  • Echocardiography, Doppler, Color*
  • Female
  • Heart / physiology*
  • Humans
  • Infant
  • Male
  • Middle Aged
  • Movement / physiology*
  • Observer Variation
  • Reference Values
  • Reproducibility of Results
  • Sex Distribution
  • Stroke Volume / physiology
  • Systole / physiology
  • Ventricular Function, Left / physiology*