ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2012
Stress-only imaging in patients with prior SPECT MPI: a simulation study.
Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Ten things to know about ten imaging studies: A preventive cardiology perspective ("ASPC top ten imaging").American journal of preventive cardiology · 2021Review
- Are SPECT MPI measures of dyssynchrony dyssynchronous?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021Article
- Stress-only SPECT myocardial perfusion imaging: a review.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2014Review
- Stress-only imaging: faster, cheaper, less radiation. So what's the hold up?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2013Article
- Clinical value of stress-only Tc-99m SPECT imaging: importance of attenuation correction.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2013Article
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Authors and funding
5 authors.
Funding
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Abstract
objectivesThe aim of this study was to determine if omitting the repeat resting scan in patients who had prior single-photon emission computed tomography myocardial perfusion imaging (SPECT MPI) would have an impact on the interpretation of the stress test.
backgroundCurrent guidelines recommend stress and rest imaging for SPECT MPI studies. Stress-only imaging has also entered the guidelines as a feasible option in low-risk patients but has not been studied in high-risk patients.
methodsTwo independent readers interpreted 47 consecutive MPIs with prior images to determine if the repeat resting scan had an impact on interpretation of the stress test images. In this retrospective analysis, we compared interpretation of stress-only SPECT images using the old rest image for comparison versus conventional rest-stress SPECT imaging. Both readers were blinded to study results. The primary end point of this study was a comparison of summed difference scores (SDS) from stress-only interpretation compared to standard rest-stress interpretation.
resultsIn this study, 36% (98/272) of patients had previous SPECT MPI. Of these patients, 48% (n = 47) were eligible for stress-only imaging. There was strong agreement between the SDS from the new stress versus old rest image compared with the new stress versus new rest image (r = 0.866, P < .001) with a mean difference in SDS of 0.6 ± 1.7. In this population, 41 of the 47 studies (87%) could have been performed with a stress-only SPECT MPI with comparison with the prior resting study. Starting with the stress-only protocol would have reduced the radiation in this population by 76%.
conclusionsVery similar data is obtained with stress-only imaging in patients who have a prior resting study. Our study suggests that the stress-only imaging may possibly be expanded to populations who have been studied previously or are at higher risk, reserving the option to add a resting study if the interpretation of the stress-only study is unclear.
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