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- W2078275106 abstract "The aim of this study is to compare the gated SPECT ejection fraction (EF) measured a few minutes (mn) after stress and more than 40 mn after stress by using Myoview as tracer and a gamma camera with fast acquisition (GE discovery). It is generally accepted that patients without severe ischemia have a post stress ejection fraction equal to the post rest one. It is also accepted that a difference of more than 5% in absolute value between 2 EF is considered as significantly different. In our study 111 patients, mean age 59,7 years, without known coronary artery disease (CAD), had first a 4 mn fast camera acquisition. The mean delay between myoview injection and beginning of SPECT imaging was 3,83 mn+/− 2,98 with a mean cardiac rate of 86,86±26 bpm. The secon acquisition was done after 42,89 mn+/− 19 mn and the mean cardiac rate was 74,34+/− 22 bpm. Mean difference in the delay is 39 mn (Max 64, Min 22). The average value of the immediate EF (computed from the first scan) was 71,55 +/−17,’4% and the average value of the delayed EF (computed from the second scan) was 64,68+/− 16,8%. The resulting mean difference is 6,86+/−14 which is significant. Mean difference between the end diatolic volume is −5,16 and −7,26 for the end systolic volume. Myocardial perfusion was normal in all the patients. The EF value measured on a scan done just after the stress test is significantly higher than the one mesured after a delay of about 40 mn This is an interesting result as a lower than expected ejection fraction value after stress compared to the rest one may be an argument for a severe CAD." @default.
- W2078275106 created "2016-06-24" @default.
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- W2078275106 date "2013-01-01" @default.
- W2078275106 modified "2023-09-26" @default.
- W2078275106 title "126: Comparison of gated SPECT ejection fraction measured immediately and more than 40 minutes after stress resting using a fast camera acquisition and Technetium labelled Tetrosformin" @default.
- W2078275106 doi "https://doi.org/10.1016/s1878-6480(13)71056-5" @default.
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