[1] Cardiac PET-CT scan can assess blood flow, metabolism, inflammation, innervation, and receptor density accurately.
[2] Myocardium has higher uptake for N-13 ammonia when compared to Rubidium-82, thus useful for myocardial perfusion imaging.
There may be patchy uptake if the subject has defects in lateral ventricular wall.
N-13 ammonia may occasionally be degraded by liver, thus causing reduced visibility of the inferior wall of the heart.
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