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[Two-dimensional echo-Doppler technic for evaluating dissecting aneurysms using the paravertebral approach].

S Makihata, M Tanimoto, T Yamamoto

    Journal of Cardiography
    |March 1, 1985
    PubMed
    Summary

    A new paravertebral echocardiography approach clearly visualizes the retrocardiac descending aorta, aiding dissecting aneurysm diagnosis. This technique identifies intimal flaps and flow patterns in true and false lumens, improving diagnostic accuracy.

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    Area of Science:

    • Cardiovascular Imaging
    • Diagnostic Echocardiography
    • Thoracic Surgery

    Background:

    • Diagnosing descending aortic abnormalities retrocardiacly via echocardiography is challenging.
    • Conventional echocardiography has limitations in visualizing the retrocardiac descending thoracic aorta.

    Observation:

    • A novel "paravertebral approach" using cross-sectional echocardiography was prospectively evaluated.
    • Two patients with dissecting aneurysms underwent imaging in the right lateral position with a specialized transducer placement.
    • This approach allowed visualization of the retrocardiac descending aorta in both long and short axes.

    Findings:

    • The paravertebral approach clearly visualized the descending thoracic aorta and oscillating intimal flaps.
    • Pulsed Doppler echocardiography revealed distinct flow patterns in true and false lumens, with higher velocities in the true lumen.

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  • The technique detected jet flow at the entrance tear in one patient, a previously unreported finding.

    • Implications:

    • The paravertebral approach shows promise for initial evaluation of suspected acute dissecting aortic aneurysms.
    • This echocardiographic technique may enhance diagnostic capabilities for retrocardiac aortic pathology.
    • Further comprehensive studies are needed to establish the sensitivity and specificity of this method.