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[Quantitative evaluation of left ventricular systolic function using bidimensional echocardiography: comparison with
R Crepaz1, W Pitscheider, A Erlicher
1Divisione di Cardiologia dell'Ospedale Generale Regionale di Bolzano.
Giornale Italiano Di Cardiologia
|May 1, 1989
Summary
Two-dimensional echocardiography (2D-echo) closely matches angiography for assessing left ventricular systolic function. While 2D-echo slightly underestimates end-diastolic volume index, it provides reliable measurements for clinical use.
Area of Science:
- Cardiology
- Medical Imaging
- Physiology
Background:
- Left ventricular systolic function is crucial for cardiovascular health.
- Accurate assessment of systolic function is vital for diagnosing and managing heart conditions.
- Angiography and 2D-echocardiography are established methods for evaluating cardiac function.
Purpose of the Study:
- To compare the accuracy of 2D-echocardiography against angiography in evaluating left ventricular systolic function.
- To assess various cardiac parameters including volumes, ejection fraction, mass, and contractility using both imaging modalities.
- To determine the reliability and potential discrepancies between the two methods in a diverse patient cohort.
Main Methods:
- A comparative study involving 80 subjects with various cardiac conditions and normal controls.
- Simultaneous measurement of right arm systolic blood pressure during 2D-echocardiography within 24 hours of angiography.
- Acquisition and analysis of parameters such as end-diastolic volume index, end-systolic volume index, ejection fraction, and left ventricular mass index.
Main Results:
- No statistically significant differences were observed between 2D-echocardiography and angiography for most assessed parameters.
- 2D-echocardiography showed a slight underestimation of the end-diastolic volume index (p < 0.01).
- A slight overestimation of the mass/volume ratio by 2D-echocardiography was noted (p < 0.01).
- Inter- and intraobserver variability for 2D-echocardiography measurements were low, indicating good reproducibility.
Conclusions:
- 2D-echocardiography is a reliable non-invasive method for assessing left ventricular systolic function, comparable to angiography.
- Minor discrepancies in end-diastolic volume index and mass/volume ratio do not significantly impair clinical utility.
- The study supports the use of 2D-echocardiography as a valuable tool in routine cardiac evaluation.