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Objectives: Post-stress left ventricular ejection fraction (LVEF) and LV volumes have incremental value in predicting cardiac death (CD) in patients with coronary artery disease. In this study, we aimed to investigate the effect of imaging time after exercise on post-stress LVEF, end-diastolic volume (EDV) and end-systolic volume (ESV) calculated by cardiac quantification software program called Quantitative Gated SPECT (QGS-Cedars-Sinai). Materials and methods: This study was consisted of 36 patient referred to Nuclear Medicine Department from Cardiology Clinics because of chest pain in 'Elazig Research and Training Hospital' in 2008-2009. In all patients, ECG Gated (8-bin frame mode) myocardial perfusion SPECT scintigraphy was performed 20 and 40 min later following 99mTc-Mibi injection during exercise. By means of the cardiac quantification software program called Quantitative Gated SPECT (QGS-Cedars-Sinai); LVEF, EDV and ESV were calculated. LVEF, EDV and ESV values obtained from initial and second acquisition were compared statistically. Results: There was no statistically significant difference between post-stress LVEF, EDV and ESV measures of initial and second acquisition (p>0.05). Conclusion: Left ventricular functional parameters after exercise are important for assess prognosis in patients with CAD. Post-stress LVEF, EDV and ESV measured on gated myocardial perfusion SPECT images within 20-40 min after completion of exercise give reproducible information. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Academic Emergency Medicine / Akademik Acil Tip Olgu Sunumlari Dergisi is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)