title: Measurement of ventricular volumes and function: a comparison of gated PET and cardiovascular magnetic resonance.
abstract: The aim of this study was to compare cardiac volume and function assessment using PET with the reference technique of cardiovascular magnetic resonance (CMR).
  
  
  METHODS
  Left ventricular (LV) and right ventricular (RV) end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), and ejection fractions (EF) were measured in 9 patients using both CMR and PET with inhaled C(15)O.
  
  
  RESULTS
  Correlation between the techniques was generally reasonable (r values ranged from 0.63 to 0.99). Best agreement was seen for ESV (LV and RV). With PET, there was a tendency to underestimate LV EF and EDV, and RV EDV and SV. Agreement was worst for LV SV. Percentage difference between CMR and PET measurements ranged from -2% to 15%; Bland-Altman limits of agreement ranged from 24% to 75%.
  
  
  CONCLUSIONS
  Although small systematic differences exist, the agreement between PET and CMR suggests useful information regarding function, and volumes may be obtained from a standard PET protocol.
authors.affiliation: Cardiovascular MR Unit, Royal Brompton Hospital, National Heart and Lung Institute, London, United Kingdom.
authors.forename: Kim
authors.initials: K
authors.lastname: Rajappan
authors.forename: Lefteris
authors.initials: L
authors.lastname: Livieratos
authors.forename: Paolo G
authors.initials: PG
authors.lastname: Camici
authors.forename: Dudley J
authors.initials: DJ
authors.lastname: Pennell
mesh_terms: D000465:Algorithms; D004562:Electrocardiography; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D018810:Magnetic Resonance Angiography; D010865:Pilot Projects; D013318:Stroke Volume / Q000502:physiology*; D014055:Tomography, Emission-Computed; D016277:Ventricular Function, Left / Q000502:physiology*; D016278:Ventricular Function, Right / Q000502:physiology*