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Gallium-67 and subpherenic abscesses--is delayed scintigraphy necessary?

G B Hopkins, C W Mende

    Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
    |July 1, 1975
    PubMed
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    Early gallium-67 (67Ga) scintigraphy is a valuable, noninvasive tool for diagnosing subphrenic abscesses in postoperative patients. This imaging technique accurately identifies abscesses, even when performed early after injection.

    Area of Science:

    • Nuclear Medicine
    • Diagnostic Imaging
    • Abdominal Surgery

    Background:

    • Subphrenic abscesses are serious postoperative complications.
    • Accurate and timely diagnosis is crucial for effective management.
    • Conventional imaging may have limitations in detecting these abscesses.

    Purpose of the Study:

    • To evaluate the diagnostic utility of early and delayed gallium-67 (67Ga) scintigraphy for subphrenic abscesses.
    • To determine the optimal timing for 67Ga scintigraphy in this clinical setting.

    Main Methods:

    • Prospective evaluation of 40 postoperative patients with suspected subphrenic abscess.
    • Administration of 67Ga citrate followed by early (6-hour) and delayed imaging.
    • Correlation of scintigraphic findings with clinical and radiographic data.

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    Main Results:

    • Early 67Ga scintigraphy correctly localized 7 right and 5 left subphrenic abscesses.
    • No abscesses were detected on delayed scans that were not visible on early scans.
    • Two false-negative results occurred in patients with left-sided abscesses; no false-positive results were recorded.

    Conclusions:

    • Early 67Ga scintigraphy is a sensitive and specific noninvasive method for diagnosing subphrenic abscess.
    • The 6-hour imaging protocol is sufficient, rendering delayed scans unnecessary.
    • 67Ga scintigraphy serves as a valuable adjunct in the diagnosis of subphrenic abscess.