title: [Correlation between left ventricular ejection fraction assessed by gated SPECT and radionuclide ventriculography in patients with ischemic cardiomyopathy].
abstract: BACKGROUND
  Recently, the use of Gated SPECT to assess ejection fraction, volumes and ventricular wall motion has been suggested. The aim of this study is to compare the ejection fraction (EF) obtained by Gated SPECT (QGS, Cedars Sinai) with the values obtained through equilibrium ventriculography in patients with ischemic heart disease.
  
  
  METHODS
  We studied 50 consecutive patients that were diagnosed by equilibrium radioisotopic ventriculography and Gated SPECT with a dual protocol (TI-201 rest/Tc-99m SestaMIBI stress) using the QGS, Cedars Sinai software.
  
  
  RESULTS
  We found a 92% correlation between both tests. In the subgroup analysis, the higher correlation (r = 0.89) was found in group 2, which included patients with moderate ventricular dysfunction (EF 30-50%), whereas, in patients with severe ventricular dysfunction (group 3, EF < 30%), the correlation was lower (r = 0.76) than in group 2, but higher than in patients with EF > 50% (group 1).
  
  
  CONCLUSIONS
  There is a good correlation between EF obtained with Gated SPECT and equilibrium ventriculography, regardless of the EF value.
authors.affiliation: Departamento de Medicina Nuclear, Instituto Nacional de Cardiología Ignacio Chávez, INCICH, Juan Badiano No. 1 Col. Sección XVI, Tlalpan 14080 México, D.F. alexanderick@yahoo.com
authors.forename: Erick
authors.initials: E
authors.lastname: Alexánderson
authors.forename: Diana
authors.initials: D
authors.lastname: Gómez-Martín
authors.forename: Salomón
authors.initials: S
authors.lastname: Fermon
authors.forename: Aloha
authors.initials: A
authors.lastname: Meave
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003326:Coronary Circulation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging*; D015635:Radionuclide Ventriculography; D015203:Reproducibility of Results; D013318:Stroke Volume; D017256:Technetium Tc 99m Sestamibi; D013794:Thallium Radioisotopes; D015899:Tomography, Emission-Computed, Single-Photon; D016277:Ventricular Function, Left
chemical_list: D013794:Thallium Radioisotopes; D017256:Technetium Tc 99m Sestamibi