Two-dimensional echocardiographic automatic boundary detection for evaluation of left ventricular function in unselected adult patients | JoVE Visualize

Two-dimensional echocardiographic automatic boundary detection for evaluation of left ventricular function in unselected adult patients

A D Waggoner¹, J G Miller, J E Pérez

¹Cardiovascular Division, Washington University, St. Louis, MO 63110.

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography|September 1, 1994

View abstract on PubMed

Summary

Automatic boundary detection (ABD) in echocardiography offers quick left ventricular (LV) function assessment. While generally effective, its clinical utility varies across different imaging views, with some segments showing discrepancies compared to traditional methods.

Area of Science:

Cardiology
Medical Imaging
Echocardiography

Background:

Two-dimensional echocardiography is a cornerstone of cardiac assessment.
Automatic boundary detection (ABD) is a novel modification for echocardiographic imaging.
ABD aims for instantaneous quantification of left ventricular (LV) function.

Purpose of the Study:

To evaluate the clinical application of ABD across different echocardiographic views.
To compare the visualization capabilities of ABD versus conventional two-dimensional imaging.
To assess the accuracy of ABD in detecting LV endocardial/blood borders.

Main Methods:

Consecutive patients (n=68) underwent both conventional 2D imaging and ABD.
The LV was divided into six segments per view (short-axis, four-chamber, two-chamber).
Visualization success rates and border detection concordance were compared between methods.

Main Results:

Visualization adequacy varied by view: short-axis (96% 2D vs. 89% ABD), four-chamber (93% 2D vs. 86% ABD), two-chamber (88% 2D vs. 80% ABD).
ABD detected LV borders concordantly with 2D imaging in 72-73% of cases.
Discrepancies were noted in specific segments, and the average ABD acquisition time was 375 seconds.

Conclusions:

ABD shows promise for LV function assessment but requires further refinement for optimal clinical application.
Visualization success and accuracy of ABD are view-dependent and may be lower than conventional 2D echocardiography in certain segments.
The time investment for ABD needs consideration in routine clinical practice.