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ASNC 2013: Stress Before Rest in Myocardial Perfusion Imaging

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The Particulars: The American Society of Nuclear Cardiology (ASNC) has issued a goal of reducing radiation doses to 9 mSv or lower in 50% of myocardial perfusion imaging (MPI) studies by 2014. To achieve this goal, other approaches may be beneficial. Use of a low-dose stress first, high-dose rest second (stress/rest)—as opposed to rest first, stress second (rest/stress)—single positron emission computed tomography (SPECT) MPI protocol may help achieve this goal. This approach could limit radiation doses by identifying patients with normal reads who would need only lose-dose stress imaging.

Data Breakdown: Outpatients, inpatients, and ED patients at high risk for cardiac problems participated in a study and underwent stress/rest, rest/stress, or stress-only imaging. The typical radiation dose for stress-only imaging was 2 mSv, compared with 9 mSv for both stress/rest and rest/stress imaging approaches.

Take Home Pearls: Use of a stress/rest SPECT MPI protocol appears to be feasible and may exceed the ASNC’s goal of reducing radiation doses to 9 mSv or lower in 50% of patients by 2014. With this protocol, patients with normal reads on low-dose stress imaging may be able to avoid high-dose rest imaging.

1 Comment

  1. You greet .
    Often in my free time , when given the opportunity and guidance to surf novelty of myocardial perfusion SPECT .
    In essence my place later we started to apply this method , the less our experience and not because of the possibility to supply sufficient material for regular studies , have been forced to these last two years of the SPECT Myocardial Perfusion scintigrafin I work only two days to two weeks . For this purpose, we have been forced to work with small doses of first stress that potokolin then rest , or just stress . The results were relatively satisfactory and in coordination with the results pending cardiologist . I think that the proposals given by the American Association for the nuclear cardiologist dose reduction would be in favor of radiation protection of patients and staff working without the left hand after getting accurate information for diagnosis of the disease (everything in favor of patient )
    Thank you for all the new information and to enable us that we who do not have conditions to attend any conference , to have access .

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