Scan-rescan reproducibility of ventricular and atrial MRI feature tracking strain - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Computers in Biology and Medicine Année : 2018

Scan-rescan reproducibility of ventricular and atrial MRI feature tracking strain

Elie Mousseaux

Résumé

BACKGROUND: A feature tracking (FT) was designed to simultaneously extract myocardial strains in main cardiac chambers from cine MRI images. Its inter-observer and scan-rescan reproducibility was assessed and sample sizes required to detect predefined longitudinal changes in strain values were provided. METHOD: FT was applied on left (LV) and right (RV) ventricles as well as left atrium (LA) of 21 individuals (66 ± 10 years) who underwent 2 MRIs 2 weeks apart. Global peaks for radial, circumferential, longitudinal strains, radial motion fraction (Mr), fractional area change (FAC) and tricuspid annular plane excursion (TAPSE) were estimated. Inter-operator and inter-exam reproducibility were evaluated using coefficients of variations (CV) and intra-class correlation coefficients (ICC). RESULTS: Reproducibility of all measurements were good to excellent for inter-operator (LV:CV0.91; RV:CV0.86; LA:CV0.85) and inter-study (LV:CV0.65; RV:CV0.71; LA:CV0.83) evaluations. Reasonable sample sizes are required to detect a longitudinal difference of 10-15% in strain values (LV:5 to 33 individuals, RV:14 to 62 individuals, LA:4 to 65 individuals). CONCLUSIONS: FT-based functional evaluation of main heart chamber deformation from cine MRI is repeatable and thus suitable for follow-up. Strain measurements may help for the joint clinical evaluation of LV, RV or LA implication in various cardiomyopathies.
Fichier non déposé

Dates et versions

hal-01842347 , version 1 (18-07-2018)

Identifiants

Citer

Jérôme Lamy, Gilles Soulat, Morgane Evin, Adrian Huber, Alain de Cesare, et al.. Scan-rescan reproducibility of ventricular and atrial MRI feature tracking strain. Computers in Biology and Medicine, 2018, 92, pp197-203. ⟨10.1016/j.compbiomed.2017.11.015⟩. ⟨hal-01842347⟩
113 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More