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. Author manuscript; available in PMC: 2008 Nov 20.
Published in final edited form as: J Nucl Med. 2007 May;48(5):794–801. doi: 10.2967/jnumed.106.035717

TABLE 1.

Protocol for Ammonia Cardiac Perfusion Study with Cine CT

Steps Time Notes
Prepare patient (14)
Acquire scout scan <1 min
Rest study
 Perform first resting cine CT attenuation correction <1 min
 Administer NH3 (370–740 MBq)
 Acquire resting dynamic PET study 4 min For myocardial blood flow quantitation
 Acquire resting cardiac gated PET study 15 min For qualitative perfusion assessment
 Perform second resting cine CT attenuation correction <1 min
 Wait for isotope decay ~20 min 40 min between injections
Stress study
 Administer dipyridamole 4 min 0.56 mg/kg over 4 min
 Perform first stress cine CT attenuation correction <1 min
 Administer NH3 (555–925 MBq)
 Acquire stress dynamic PET study 4 min For myocardial blood flow quantitation
 Acquire stress cardiac gated PET study 15 min For qualitative perfusion assessment
 Perform second stress cine CT attenuation correction <1 min
Total acquisition time ~80 min