Whole body imaging takes about 45 minutes and occurs 3 hrs after injection. Please advise your patients about the waiting period between injection and imaging. No other Tc-99m imaging studies for at least 48 hours prior to scanning. The triple phase bone scan includes an angiogram, blood pool images and 3 hour delayed images. For a regular bone scan only 3 hour delayed images are obtained.
Bone scan visualizes a great deal of pathology long before roentgenographic changes are evident.
MDP is absorbed by and subsequently bound to bone matrix. The maximum incorporation occurs during osteoblastic activity. In general, any process that results in increased osteogenic activity or increased localized osseous blood perfusion will be detected. Soft tissue processes can be differentiated from bone pathology by utilizing the triple phase technique. Evaluation of regional bone marrow abnormalities in general.