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  • Title: Infection in diabetic osteoarthropathy: use of indium-labeled leukocytes for diagnosis.
    Author: Maurer AH, Millmond SH, Knight LC, Mesgarzadeh M, Siegel JA, Shuman CR, Adler LP, Greene GS, Malmud LS.
    Journal: Radiology; 1986 Oct; 161(1):221-5. PubMed ID: 3763871.
    Abstract:
    Indium-111 labeled leukocyte imaging was compared with three-phase skeletal scintigraphy as a means of determining whether osteomyelitis was complicating diabetic osteoarthropathy. Three-phase scintigraphy demonstrated increased activity in both infected and noninfected osteopathic bone, with a sensitivity of 75% and a specificity of 56% for osteomyelitis. Leukocyte imaging had the same sensitivity but was most helpful for excluding infection (specificity, 89%) when three-phase imaging could not. Abnormal leukocyte localization was seen at the primary site of infection in all cases within 4 hours after injection. Disadvantages of leukocyte imaging included long preparation time, low count rates resulting in poor spatial resolution, and absence of bone landmarks, which made it difficult to differentiate soft tissue from bone infection.
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