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Digital subtraction pulmonary angiography

P C Goodman, M Brant-Zawadzki

    AJR. American Journal of Roentgenology
    |August 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Digital subtraction pulmonary angiography (DSPA) is a valuable tool for diagnosing pulmonary embolism, providing useful clinical information in most patients. This technique offers advantages over conventional angiography in specific clinical scenarios.

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    Area of Science:

    • Radiology
    • Cardiovascular Imaging
    • Pulmonary Medicine

    Background:

    • Pulmonary embolism diagnosis often requires advanced imaging.
    • Conventional angiography is invasive and carries risks.
    • Minimally invasive imaging techniques are sought for pulmonary embolism detection.

    Purpose of the Study:

    • To evaluate the efficacy and image quality of digital subtraction pulmonary angiography (DSPA) in patients suspected of pulmonary embolism.
    • To compare DSPA with conventional angiography in a subset of patients.

    Main Methods:

    • Digital subtraction pulmonary angiography was performed in 14 patients with suspected pulmonary embolism.
    • In nine patients, DSPA was conducted via existing pulmonary artery catheters.
    • Conventional angiography was used for comparison in nine patients.

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    Main Results:

    • Useful clinical information was obtained in 13 out of 14 patients.
    • Pulmonary emboli were confirmed in four patients.
    • DSPA findings were consistent with conventional angiography in nine patients.

    Conclusions:

    • Digital subtraction pulmonary angiography offers adequate image quality in certain situations.
    • DSPA presents several advantages compared to conventional angiography for pulmonary embolism diagnosis.
    • This technique shows promise for evaluating critically ill patients with suspected pulmonary embolism.