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Study Type, Agent and Dose?

Normal Cardiac PYP Imaging

Normal                                          Positive for Comparison

Agent: ^99m Tc-Pyrophosphate
Adult Doses: 15 mCi IV
Excretion:  Renal
Critical organ:  Bladder
Notes:

• If you initially though “bone scan”, you’re not far off, as PYP was one of the early bone-imaging agents
• History, and uptake around the heart (on a presumably positive study) should allow for identification
• Scan turns positive about 12 hrs. Post-infract, and reaches maximum uptake by about 72 hrs.
• Diffuse uptake may be seen in myocarditis and other conditions