SPECT MPI: The Lowdown on Lowering Dose

May 29, 2013

Advancements in hardware, software and protocols now allow nuclear medicine groups to lower both dose and acquisition time when performing SPECT MPI studies. For some labs, though, folding new technologies into routine practice may require some sacrifice.

Balancing cost & benefit

In 2010, the American Society of Nuclear Cardiology (ASNC) set a goal for the nuclear imaging community to lower patient radiation exposure in SPECT myocardial profusion imaging (MPI) to less than 9 mSv in half of patients by 2014 (J Nucl Cardiol 2010;17:709-718). ASNC encouraged nuclear cardiology specialists to consider technologies and techniques that allowed them to reduce the injected radiopharmaceutical dose and consequently reduce the radiation dose absorbed by the patient—all while maintaining, or even improving, image quality. To meet ASNC’s challenge, nuclear cardiologists, radiologists and technologists may need to modernize.