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The thoracic aorta studied by MR imaging.

H S Glazer, F R Gutierrez, R G Levitt

    Radiology
    |October 1, 1985
    PubMed
    Summary
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    Magnetic resonance (MR) imaging effectively visualizes various thoracic aortic diseases, including aneurysms and dissections. This noninvasive technique aids in diagnosing complex aortic conditions.

    Area of Science:

    • Cardiovascular Imaging
    • Radiology
    • Medical Diagnostics

    Background:

    • Thoracic aortic diseases encompass a range of serious conditions.
    • Accurate noninvasive imaging is crucial for diagnosis and management.
    • Magnetic resonance (MR) imaging offers advanced visualization capabilities.

    Purpose of the Study:

    • To evaluate the utility of MR imaging in diagnosing diverse thoracic aortic disorders.
    • To assess MR imaging's ability to delineate anatomical features and disease extent.
    • To determine if MR imaging is a viable noninvasive tool for thoracic aorta evaluation.

    Main Methods:

    • Thirty-three patients with various thoracic aortic conditions underwent MR imaging.
    • MR imaging protocols were employed to visualize aortic anatomy and pathology.

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  • Image analysis focused on identifying specific disease characteristics.

    • Main Results:

    • MR imaging successfully delineated thoracic aortic aneurysms and their relationship to arch vessels.
    • Intimal flaps and individual lumina were visualized in aortic dissections (Types A and B).
    • Ascending aorta dilation (Marfan syndrome), aortic narrowing (coarctation), great vessel relationships (L-transposition), and aortic wall changes (Takayasu arteritis) were well demonstrated.

    Conclusions:

    • Initial experience indicates MR imaging is a promising noninvasive method for evaluating thoracic aortic disease.
    • MR imaging provides detailed anatomical information for conditions like aneurysms, dissections, and congenital abnormalities.
    • Limitations include spatial resolution, single-section imaging challenges, lack of calcification signal, and unsuitability for critically ill patients.