Abstract
Three-phase bone scintigraphy using technetium-99m-methylene diphosphonate is used to diagnose skeletal lesions, whereas single-photon emission computed tomography/computed tomography (SPECT/CT) improves the diagnostic accuracy of bone disease. We investigated the usefulness of SPECT/CT combined with three-phase bone scintigraphy over three-phase bone scintigraphy alone in assessing suspected bone tumors in patients with no malignant history. Forty-eight patients (30 men and 18 women; mean age, 43.3 ± 20.1 years; age range, 11-82 years) with suspected bone tumors who underwent technetium-99m-methylene diphosphonate three-phase bone scintigraphy and SPECT/CT between July 2008 and August 2013 were retrospectively reviewed. The lesion from each patient was resected or biopsied for pathological confirmation of the diagnosis within 3 weeks of the bone scan. All images were interpreted by two experienced nuclear medicine physicians who had not been involved in the selection of data for the present study. The reviewers were aware of the patient's sex, age, and the lesion's site but were unaware of the results of other imaging modalities, such as radiography, MRI, and laboratory tests. In cases of discrepancy regarding the interpretati...Continue Reading
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