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Related Experiment Videos

Digital subtraction angiography: current clinical applications.

D M Pelz, A J Fox, F Vinuela

    Stroke
    |May 1, 1985
    PubMed
    Summary
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    Henry J.M. Barnett.

    AJNR. American journal of neuroradiology·2016

    Digital subtraction angiography (DSA) shows promise for neurologic diagnosis. While intravenous DSA (IV-DSA) is effective for extracranial carotid atherosclerosis screening, intra-arterial injections offer a safer and more cost-effective future for cerebrovascular investigations.

    Area of Science:

    • Neurologic Diagnosis
    • Vascular Imaging
    • Medical Technology

    Background:

    • Digital subtraction angiography (DSA) applications in neurologic diagnosis are evolving.
    • Initial enthusiasm for intravenous contrast injections has been tempered by equivocal results.

    Purpose of the Study:

    • To evaluate the evolving applications of DSA in neurologic diagnosis.
    • To assess the efficacy and limitations of intravenous DSA (IV-DSA) and highlight the future potential of intra-arterial DSA.

    Main Methods:

    • Review of clinical experience and results with digital subtraction angiography (DSA).
    • Comparison of intravenous DSA (IV-DSA) with duplex ultrasound for extracerebral carotid atherosclerosis screening.
    • Assessment of intracranial imaging capabilities of IV-DSA, focusing on venous sinuses and parasellar arteries.

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    Main Results:

    • Intravenous DSA (IV-DSA) is an accurate screening tool for extracranial carotid atherosclerosis, comparable to duplex ultrasound.
    • Intracranial imaging with IV-DSA is less satisfactory but provides reliable data for venous sinuses and parasellar arteries.
    • Intra-arterial contrast injections represent the future of DSA, reducing risks and costs for cerebrovascular investigations.

    Conclusions:

    • DSA continues to evolve in neurologic diagnosis.
    • Intra-arterial DSA is poised to become the preferred method for definitive cerebrovascular investigation due to improved safety and cost-effectiveness.