Stéphane Tuffier1, Damien Legallois1,2, Annette Belin3, Michael Joubert1, Alban Bailliez1, Michel Redonnet4, Denis Agostini1,5, Alain Manrique6,7,8. 1. Normandie Université, EA 4650, Caen, France. 2. Department of Cardiology, Caen University Hospital, Caen, France. 3. Department of Cardiac Surgery, Caen University Hospital, Caen, France. 4. Department of Cardiac Surgery, Rouen University Hospital, Rouen, France. 5. Department of Nuclear Medicine, Caen University Hospital, Caen, France. 6. Normandie Université, EA 4650, Caen, France. manrique@cyceron.fr. 7. Department of Nuclear Medicine, Caen University Hospital, Caen, France. manrique@cyceron.fr. 8. Cyceron PET Centre, Caen, France. manrique@cyceron.fr.
Abstract
PURPOSE: Myocardial blood flow (MBF) measurement using positron emission tomography (PET) from the washout rate of (15)O-water is theoretically independent of tissue attenuation. The aim of this study was to evaluate the impact of not using attenuation correction in the assessment of coronary endothelial function and myocardial flow reserve (MFR) using (15)O-water PET. METHODS: We retrospectively processed 70 consecutive (15)O-water PET examinations obtained at rest and during cold pressor testing (CPT) in patients with dilated cardiomyopathy (n = 58), or at rest and during adenosine infusion in heart transplant recipients (n = 12). Data were reconstructed with attenuation correction (AC) and without attenuation correction (NAC) using filtered backprojection, and MBF was quantified using a single compartmental model. The agreement between AC and NAC data was assessed using Lin's concordance correlation coefficient followed by Bland-Altman plot analysis. RESULTS: Regarding endothelial function, NAC PET showed poor reproducibility and poor agreement with AC PET data. Conversely, NAC PET demonstrated high reproducibility and a strong agreement with AC PET for the assessment of MFR. CONCLUSION: Non-attenuation-corrected (15)O-water PET provided an accurate measurement of MFR compared to attenuation-corrected PET. However, non-attenuation-corrected PET data were less effective for the assessment of endothelial function using CPT in this population.
PURPOSE: Myocardial blood flow (MBF) measurement using positron emission tomography (PET) from the washout rate of (15)O-water is theoretically independent of tissue attenuation. The aim of this study was to evaluate the impact of not using attenuation correction in the assessment of coronary endothelial function and myocardial flow reserve (MFR) using (15)O-water PET. METHODS: We retrospectively processed 70 consecutive (15)O-water PET examinations obtained at rest and during cold pressor testing (CPT) in patients with dilated cardiomyopathy (n = 58), or at rest and during adenosine infusion in heart transplant recipients (n = 12). Data were reconstructed with attenuation correction (AC) and without attenuation correction (NAC) using filtered backprojection, and MBF was quantified using a single compartmental model. The agreement between AC and NAC data was assessed using Lin's concordance correlation coefficient followed by Bland-Altman plot analysis. RESULTS: Regarding endothelial function, NAC PET showed poor reproducibility and poor agreement with AC PET data. Conversely, NAC PET demonstrated high reproducibility and a strong agreement with AC PET for the assessment of MFR. CONCLUSION: Non-attenuation-corrected (15)O-water PET provided an accurate measurement of MFR compared to attenuation-corrected PET. However, non-attenuation-corrected PET data were less effective for the assessment of endothelial function using CPT in this population.
Authors: Mark Lubberink; Hendrik J Harms; Rick Halbmeijer; Stefan de Haan; Paul Knaapen; Adriaan A Lammertsma Journal: J Nucl Med Date: 2010-03-17 Impact factor: 10.057
Authors: Paul Knaapen; Ronald Boellaard; Marco J W Götte; Pieter A Dijkmans; Linda M C van Campen; Carel C de Cock; Gert Luurtsema; Cees A Visser; Adriaan A Lammertsma; Frans C Visser Journal: J Nucl Med Date: 2004-08 Impact factor: 10.057