Fickle Radiotracer Supply Chain Hurts SPECT-MPI

Switch to alternatives during shortage led to excess cardiac caths

Breaks in the supply of technetium 99m (99mTc) — the main radiotracer for cardiac stress testing with single-photon emission CT myocardial perfusion imaging (SPECT-MPI) — can be linked to excess cardiac catheterizations, a study suggests.

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