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[Intravenous digital subtraction angiography].

J Triller, P Fritschy, W A Fuchs

    Schweizerische Medizinische Wochenschrift
    |January 24, 1987
    PubMed
    Summary
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    Intravenous digital subtraction angiography (IV-DSA) offers a less invasive alternative to conventional angiography for diagnosing arterial conditions. While it provides good contrast, image quality can be lower, making catheter angiography necessary for inconclusive IV-DSA studies.

    Area of Science:

    • Vascular Imaging
    • Diagnostic Radiology

    Background:

    • Intravenous digital subtraction angiography (IV-DSA) is a valuable tool for visualizing arteries.
    • It is used when arterial stenosis, occlusion, aneurysm, or anomalies are suspected.

    Purpose of the Study:

    • To evaluate the efficacy and limitations of IV-DSA in diagnosing arterial diseases.
    • To compare IV-DSA with conventional intraarterial catheter angiography.

    Main Methods:

    • IV-DSA involves injecting contrast media into a peripheral arm vein.
    • Imaging focuses on the aorta, its branches, and major limb arteries.

    Main Results:

    • IV-DSA successfully replaces conventional angiography in many cases, offering a non-invasive approach with fewer complications and less patient discomfort.

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  • Disadvantages include lower image quality due to reduced contrast concentration and spatial resolution, requiring larger contrast volumes.

    • Conclusions:

    • IV-DSA is a suitable alternative to conventional angiography for many patients.
    • Conventional angiography remains indicated for inconclusive IV-DSA results, particularly those affected by motion artifacts or poor resolution.