Related Experiment Videos
[Interventricular septum. Angiographic and echocardiographic correlations]
Archives Des Maladies Du Coeur Et Des Vaisseaux
|January 1, 1980
Summary
Echocardiography and biventricular angiography show good correlation for measuring interventricular septal thickness, especially when using averaged angiographic measurements. However, accuracy decreases in certain hypertrophy cases.
Area of Science:
- Cardiology
- Medical Imaging
- Diagnostic Techniques
Background:
- Interventricular septal thickness is a key parameter in diagnosing cardiac conditions.
- Echocardiography and biventricular angiography are common methods for its assessment.
- Comparing these diagnostic modalities is crucial for clinical accuracy.
Purpose of the Study:
- To compare the accuracy of echocardiography and biventricular angiography in measuring diastolic interventricular septal thickness.
- To evaluate the correlation between these two imaging techniques across different patient groups.
- To identify limitations and potential ambiguities in septal thickness measurements.
Main Methods:
- Diastolic interventricular septal thickness measured using echocardiography and biventricular angiography in 48 patients.
- Patients classified into four groups: normal, concentric hypertrophy, asymmetrical septal hypertrophy without obstruction, and hypertrophic cardiomyopathy with obstruction.
- Biventricular cineangiography performed in left anterior oblique projection; septal thickness measured at multiple levels and corrected for magnification.
Main Results:
- Good qualitative correlation (73%) between echocardiography and angiography; poorer correlation (27%) in specific hypertrophy groups.
- Quantitative correlation was satisfactory, improving significantly when echocardiographic measurements were compared to averaged angiographic measurements (R=0.74, p<0.001).
- Poorest correlations observed in patients with concentric or asymmetrical hypertrophy without obstruction.
Conclusions:
- Echocardiography and biventricular angiography provide generally satisfactory measurements of diastolic septal thickness.
- Methodological differences and anatomical variations, particularly in asymmetrical hypertrophy, can lead to measurement discrepancies.
- Further investigation into optimizing measurement techniques and understanding limitations is warranted for improved diagnostic accuracy.