The influence of heartbeat acceptance window settings on left ventricular function and perfusion parameters

• Published in: Sichuan da xue xue bao. Journal of Sichuan University. Yi xue ban Vol. 43; no. 1; p. 70
• Main Authors: Zhou, Li-Na, Zeng, Yu, Jiang, Li-Sha, Qi, Zhong-Zhi, Ou, Xiao-Hong, Li, Lin
• Format: Journal Article
• Language: Chinese
• Published: China 01.01.2012
• Subjects: Atrial Fibrillation - physiopathology; Cardiac-Gated Single-Photon Emission Computer-Assisted Tomography - methods; Female; Heart Rate - physiology; Humans; Male; Myocardial Perfusion Imaging - methods; Software; Ventricular Function, Left - physiology
• ISSN: 1672-173X

To evaluate the influence of heartbeat acceptance window settings on left ventricular function and perfusion parameters of the arrhythmia patients during gated myocardial perfusion imaging. Twenty eight fibrillation patients were consecutively recruited to undergo myocardial perfusion SPECT. The Concurrent Imaging software was used to create 3 separate SPECT studies with heartbeat acceptance window of 20%, 60% and 100% respectively. The software created the 3 studies separately rather than a rearrangement of an original list-mode acquisition. After reconstruction by Astonish, end-diastole volume (EDV) and end-systolic volume (ESV), left ventricular ejection fraction (LVEF), sum stress score (SSS), and sum rest score (SRS) were calculated with Quantitative Gated SPECT (QGS). Analyses of variance were performed using SPSS to compare the differences in EDV, ESV, EF, SSS, and SRS among the three studies. 85.7% of the 28 patients had abnormal perfusing. No statistical differences were found in EDV, ESV, EF, SSS, a