Journal of Nuclear Cardiology

, Volume 10, Issue 5, pp 456–463

Stress-related variations in left ventricular function as assessed with gated myocardial perfusion SPECT

  • Hein J. Verberne
  • Marcel G. W. Dijkgraaf
  • G. Aernout Somsen
  • Berthe L. F. van Eck-Smit

DOI: 10.1016/S1071-3581(03)00589-0

Cite this article as:
Verberne, H.J., Dijkgraaf, M.G.W., Somsen, G.A. et al. J Nucl Cardiol (2003) 10: 456. doi:10.1016/S1071-3581(03)00589-0



There is inconsistency in reported patient characteristics associated with differences in basal and poststress left ventricular function (delta ejection fraction [△EF]) assessed by gated single photon emission computed tomography (SPECT). This inconsistency may therefore hamper adequate interpretation. In this study we first determined the reproducibility of serial gated SPECT-assessed left ventricular function. Second, we determined whether left ventricular ejection fraction (LVEF) assessed directly after stress reflects basal LVEF and, if not, what patient characteristics were associated with this discrepancy in LVEF.>/<

Methods and Results

Serial reproducibility of technetium 99m tetrofosmin gated SPECT-assessed LVEF in 22 patients showed a mean difference between two sequential measurements at rest of 0.09% EF units, with a 95% limit of agreement (2 SDs) at 5.8% EF units. In 229 patients Tc-99m tetrofosmin gated SPECT was performed after stress and at rest. Independent predictors of △EF were the presence of scintigraphically proven ischemia (standardized coefficient, -1.256; P = .003) and difference in heart rate at the time of acquisition (standardized coefficient, 0.121; P = .001).>/<


Gated SPECT-assessed LVEF at rest is reproducible under standard clinical conditions. However, LVEF assessed after stress does not represent LVEF at rest in patients with scintigraphically proven ischemia and in patients with increased heart rate after stress compared with heart rate at rest.>/<

Key Words

Myocardial perfusion scintigraphy gated single photon emission computed tomography left ventricular function ischemia heart rate 

Copyright information

© American Society of Nuclear Cardiology 2003

Authors and Affiliations

  • Hein J. Verberne
    • 1
  • Marcel G. W. Dijkgraaf
    • 2
  • G. Aernout Somsen
    • 3
  • Berthe L. F. van Eck-Smit
    • 1
  1. 1.Departments of Nuclear MedicineAcademic Medical CenterAmsterdamThe Netherlands
  2. 2.Departments of Clinical Epidemiology & BiostatisticsAcademic Medical CenterAmsterdamThe Netherlands
  3. 3.Departments of CardiologyAcademic Medical CenterAmsterdamThe Netherlands

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