The role of contrast enhancement in echocardiographic assessment of left ventricular function Review uri icon

Overview

MeSH Major

  • Contrast Media
  • Echocardiography
  • Heart Ventricles
  • Image Enhancement
  • Ventricular Function, Left

abstract

  • With or without contrast, echocardiographic evaluation of left ventricular (LV) function is qualitative, subjective, and experience dependent, because it is mostly based on visual interpretation of gray-scale 2-dimensional images or, at best, relies on tedious and time-consuming manual tracing of the endocardial boundaries. Adequate endocardial visualization is essential for accurate interpretation of regional wall thickening abnormalities, which constitute the diagnostic hallmark of coronary artery disease, and for reproducible assessment of LV ejection fraction. Studies performed in the last decade have estimated the number of patients with suboptimal endocardial delineation by fundamental imaging at 30%. These studies have highlighted the problem of variable image quality as a major limitation of transthoracic echocardiography because failure to adequately visualize a segment, either at rest or during stress, may compromise the ability of this technique to identify areas of dysfunctional myocardium. Several remedies based on different technologic and methodologic approaches have been tested over the years with variable success. In this review we discuss the most recent techniques that have had a positive impact on endocardial visualization, as well as the potential benefits of these approaches.

publication date

  • November 18, 2002

Research

keywords

  • Review

Identity

Language

  • eng

PubMed ID

  • 12450588

Additional Document Info

start page

  • 28J

end page

  • 34J

volume

  • 90

number

  • 10 SUPPL. 1