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Cross-sectional echocardiographic detection of aortic obstruction. 2. Coarctation of the Aorta
Insights
Cross-sectional echocardiography effectively visualized aortic coarctation in most patients. This noninvasive technique identified localized aortic diameter decrease and prominent systolic pulsations, aiding diagnosis.
Area of Science:
- Cardiovascular Imaging
- Pediatric Cardiology
- Diagnostic Ultrasound
Background:
- Coarctation of the aorta is a congenital narrowing of the aorta.
- Accurate diagnosis is crucial for timely intervention.
- Noninvasive imaging modalities are continuously being evaluated for improved detection.
Purpose of the Study:
- To assess the utility of cross-sectional echocardiography for visualizing aortic coarctation.
- To compare echocardiographic findings in patients with coarctation and normal subjects.
Main Methods:
- Cross-sectional echocardiography was performed on 18 patients with coarctation of the aorta and 20 healthy controls.
- Echocardiographic images of the aortic arch and proximal descending aorta were analyzed.
- Findings were correlated with angiographic data where available.
Main Results:
- Echocardiography visualized the aortic arch and proximal descending aorta in 16 of 18 coarctation patients.
- A localized decrease in aortic diameter near the left subclavian artery was observed, consistent with coarctation.
- Prominent systolic pulsation proximal to the obstruction was evident in affected patients.
Conclusions:
- Cross-sectional echocardiography provides direct visualization of aortic coarctation.
- This noninvasive method shows promise for diagnosing coarctation of the aorta.
- Echocardiography can identify key morphological and dynamic features of the condition.
Abstract:
Cross-sectional echocardiographic studies of the aortic arch and proximal descending aorta were performed in 18 patients with coarctation of the aorta and 20 normal subjects. In normals the aortic arch and proximal descending aorta appeared as an arcuate, echo-free structure curving across the plane of the scan. There were no localized changes in aortic diameter and the amplitude of aortic systolic pulsation was symmetrically maintained throughout the scan plane. Visualization of this region was possible in 16 of 18 patients with coarctation. In each of these cases there was a localized area of decrease in aortic diameter in the region of the left subclavian artery which corresponded to the angiographic appearance of the coarctation. In addition prominent systolic pulsation of the aortic arch proximal to the region of obstruction was evident. Cross-sectional echocardiography may offer a useful noninvasive method for direct visualization of aortic coarctation.