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Year : 1997  |  Volume : 31  |  Issue : 1  |  Page : 3-7

Utility Of 24/3 Hour Interventional Bone Scintigraphy In Differential Diagnosis Of Benign Bony Lessions



Correspondence Address:
Aseem Bhatnagar


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Specificity of routine bone scan acquired at 3h is quite low because most bone lesions appear as “hot spots” irrespective of underlying pathology. By taking an additional view of lesions at 24 h and using dexamethasone intervention between the two acquisitions, the specificity can be increased appreciably since lesions can be segregated according to their osteoblastic activity. Quantification is possible by calculating 24/3h radio uptake ratio for each lesion. The technique appears capable of differentiating pathological osteoblastic lesions, physiological osteoblastic lesions and degenerative bony lesions and may be useful in assessing treatment response in Pott’s spine, osteomyelitis and rheumatoid arthritis.


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