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Splenic implants: evaluation with radionuclide methods.

T Abu-Nema, K Nawaz, S Sadek

    Radiology
    |June 1, 1987
    PubMed
    Summary
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    Radioisotopic imaging effectively monitors omental splenic implants after splenectomy. Technetium-99m labeled red blood cells (RBCs) showed superior visualization of splenic implants compared to tin colloid.

    Area of Science:

    • Nuclear Medicine
    • Surgical Oncology
    • Gastroenterology

    Background:

    • Splenectomy is performed for various conditions including trauma, portal hypertension, splenic artery aneurysm, and Wiskott-Aldrich syndrome.
    • Omental splenic implants are a surgical option to maintain splenic function post-splenectomy.
    • Assessing the viability of these implants is crucial for patient outcomes.

    Purpose of the Study:

    • To evaluate the effectiveness of radioisotopic procedures in assessing the viability of omental splenic implants.
    • To compare the efficacy of technetium-99m tin colloid and Tc-99m-labeled denatured red blood cells (RBCs) for implant visualization.

    Main Methods:

    • Omental splenic implants were placed in 16 patients post-splenectomy.
    • Viability was assessed using 37 technetium-99m tin colloid studies and 5 studies with Tc-99m-labeled denatured RBCs.

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  • Studies were conducted within the first month and up to 13 months post-surgery.

    • Main Results:

    • Implants were visualized in 5/8 trauma patients within the first month and 7/7 after 6 months.
    • In portal hypertension cases, implants were seen in 3/6 within the first month and 4/4 at 6 months.
    • Tc-99m-labeled denatured RBCs proved more successful in visualizing implants compared to Tc-99m tin colloid.

    Conclusions:

    • Radioisotopic procedures are valuable tools for monitoring the viability of splenic implants.
    • The success rate of splenic implants in schistosomiasis patients is comparable to that in trauma patients.
    • Tc-99m-labeled denatured RBCs offer improved visualization of splenic implants.