title: [Influence of gated myocardial perfusion imaging with different acquisition models on the assessment of left ventricular function].
abstract: This paper is aimed to investigate the influence of gated myocardial perfusion imaging (G-MPI) with 8- and 16-frame acquisition models on the assessment of left ventricular function. Patients prepared for stress and rest G-MPI were prospectively recruited from January 2010 to January 2011 in the Department of Nuclear Medicine of West China Hospital, Sichuan University. Two separate G-MPI studies, one with 8 and the other with 16 frames, were simultaneously acquired during a single gantry orbit using Concurrent Imaging technique. We calculated the left ventricular ejection fraction (EF) and volumes using the Auto Quant software. Forty-eight patients (29 men, 19 women; average age 51 +/- 16 years old) were finally analyzed. The differences in left ventricular EF between 8- and 16-frame were small: 3.27% (95% CI: 6.41%-0.12%) for post-stress and 3.13% (95% CI: 5.93%-0.32%) for rest. Both using 8 and 16 frames, there were significantly larger volumes and lower EF in patients with stress-induced ischemia than without. As for detecting left ventricular EF, 8-frame and 16-frame acquisition models should not be mutually alternated.
authors.affiliation: Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zeng
authors.forename: Lisha
authors.initials: L
authors.lastname: Jiang
authors.forename: Lina
authors.initials: L
authors.lastname: Zhou
authors.forename: Xiaochuan
authors.initials: X
authors.lastname: Yang
authors.forename: Luyi
authors.initials: L
authors.lastname: Zhou
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D015637:Gated Blood-Pool Imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging / Q000503:physiopathology; D055414:Myocardial Perfusion Imaging / Q000379:methods*; D019275:Radiopharmaceuticals; D013318:Stroke Volume / Q000502:physiology*; D017256:Technetium Tc 99m Sestamibi; D016277:Ventricular Function, Left / Q000502:physiology
chemical_list: D019275:Radiopharmaceuticals; D017256:Technetium Tc 99m Sestamibi