Abstract Objective: To evaluate the value of SPECT/CT in assessment of sacroiliac joint foci of abnormal bone metabolism classified as indeterminate on bone scanning using 99mTc-MDP． Methods: Undiagnosed fifty-six patients with solitary sacroiliac joint abnormal uptake in bone scanning were scanned by SPECT/CT. The final diagnosis was based on pathology or follow-up diagnosis of more than six months. McNemar test was used for data analysis for SPETCT, CT and their fusion images(SPSS version 13.0)． Results: In Fifty-six patients, 15 cases were malignant and 41 cases were benign diseases． The diagnostic accuracy of SPECT, CT and SPECT/CT was 71.4％, 85.7％ and 94.6％ respectively. The accuracy of SPECT/CT was significantly higher than that of SPECT and CT(χ2=28.32, 14.27, P<0.05). Conclusion: Most of the solitary sacroiliac joint foci caused by benign diseases． SPECT/CT is particularly valuable in the differential diagnosis of benign and malignant sacroiliac joint diseases.
QING Chun,LUO Yi. The differential diagnosis of solitary lesions in sacroiliac joint by SPECT/CT fusion imaging[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(3): 202-204.
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