ArticleThe international journal of cardiovascular imaging2021
A comparison of 8 and 16 frames gated SPECT imaging for determination of left ventricular volumes and ejection fraction: effects of gender and myocardial counts.
Article in The international journal of cardiovascular imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Peak filling rate assessed by myocardial perfusion imaging predicts adverse outcomes in women with chronic coronary syndromes.Quantitative imaging in medicine and surgery · 2026Article
- Enhanced accuracy of cardiacEuropean journal of nuclear medicine and molecular imaging · 2026Article
- SMGDiff: step mapping generalized diffusion model for efficient noise reduction in cardiac-gated myocardial perfusion SPECT images.EJNMMI physics · 2026Article
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4 authors.
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Abstract
In myocardial gated SPECT imaging each cardiac cycle is divided into 8 or 16 temporal frames and the cause of the difference between 8 and 16 frames is not specified exactly. The aim of this study was to investigate the effect of myocardial detector counts and gender on the difference between 8 and 16 frames and also to compare the LVEF obtained by 8 and 16 frames with echocardiography. The study population included 84 patients who underwent gated SPECT imaging. Left ventricular parameters were assessed on 8 and 16 frames gated SPECT. LVEF was also measured with two-dimensional echocardiography within 5-10 days after gated SPECT imaging. There was a good correlation between 8 and 16 frames for calculation of LVEF (p = 0.00, r = 0.860), EDV (p = 0.00, r = 0.965) and ESV (p = 0.00, r = 0.956) in all patients. But the difference between 8 and 16 frames for calculation of LVEF (p = 0.00), EDV (p = 0.014) and ESV (p = 0.00) was statistically significant. This difference was assessed separately in females, males, patients with high photon counts and patients with low photon counts and in all subgroups was statistically significant difference in the estimation of LVEF and ESV (p < 0.05) but no significant difference in the estimation of EDV (p > 0.05). Echocardiography resulted in smaller LVEF as compared to 8 and 16 frames gated SPECT studies and there was a significant difference between the two methods (p = 0.00). The myocardial detector counts and gender have no effect on the difference between 8 and 16 frames methods and the LVEF on echocardiography is smaller than the gated SPECT, but the 8-frame is closer to echocardiography.
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