Effect of physiological heart rate variability on quantitative T2 measurement with ECG-gated Fast Spin Echo (FSE) sequence and its retrospective correction.
Fiche publication
Date publication
novembre 2013
Journal
Magnetic resonance imaging
Auteurs
Membres identifiés du Cancéropôle Est :
Pr FELBLINGER Jacques, Dr VUISSOZ Pierre-André
Tous les auteurs :
de Roquefeuil M, Vuissoz PA, Escanyé JM, Felblinger J
Lien Pubmed
Résumé
Quantitative T2 measurement is applied in cardiac Magnetic Resonance Imaging (MRI) for the diagnosis and follow-up of myocardial pathologies. Standard Electrocardiogram (ECG)-gated fast spin echo pulse sequences can be used clinically for T2 assessment, with multiple breath-holds. However, heart rate is subject to physiological variability, which causes repetition time variations and affects the recovery of longitudinal magnetization between TR periods.
Mots clés
Adult, Echocardiography, Female, Healthy Volunteers, Heart, physiopathology, Heart Rate, Humans, Image Processing, Computer-Assisted, Magnetics, Male, Middle Aged, Movement, Myocardium, pathology, Phantoms, Imaging, Reproducibility of Results, Retrospective Studies, Time Factors
Référence
Magn Reson Imaging. 2013 Nov;31(9):1559-66