Automated registration of dynamic MR images for the quantification of myocardial perfusion

Article Article scientifique Article Automated registration of dynamic MR images for the quantification of myocardial perfusion eng 2001-04 author Bidaut Jean-Michel Radiology Department, Geneva University Hospitals, Geneva, Switzerland. luc.bidaut@dim.hcuge.ch 643033 author Vallée Jean-Paul 0000-0001-7546-2013 29185 Département de radiologie et informatique médicale (RADIO) 648-655 10.1002/jmri.1092 11276113 1053-1807 https://onlinelibrary.wiley.com/doi/full/10.1002/jmri.1092 Cardiac dynamic magnetic resonance imaging (MRI) after contrast media injection suffers from motion induced by free breathing during acquisition. This work presents an automated approach for motion correction of the heart. The registration is based on the multipass/multiresolution iterative minimizing of intrinsic differences between each image and a reference image coupled to a two-dimensional/3 parameters rigid body correction. The efficiency of this correction method was evaluated with anatomical landmarks, various cost functions, and for a compartment model fit of the data with 2 parameters: K1, the blood to myocardium transfer coefficient; and Vd, the distribution volume of the contrast media. The variability of K1 and Vd, derived from the fit of the registered images (using the manual correction as a gold standard), was significantly reduced by comparison with the variability obtained from the uncorrected images (P < 0.04). This motion correction method also clearly improves the analysis of dynamic cardiac MRI after contrast media injection in comparison to manual correction. Contrast Media / pharmacokinetics Coronary Circulation / physiology Coronary Disease / physiopathology Humans Image Processing, Computer-Assisted Least-Squares Analysis Magnetic Resonance Imaging / methods Movement Perfusion Respiratory Physiological Phenomena Dewey 616.0757 Swiss National Science Foundation Simultaneous quantification of perfusion and contraction in hibernating myocardium by magnetic resonance imaging 57020 CH Projects 62 Département de radiologie et informatique médicale 227 false 286 Imagerie cardiaque fonctionnelle 541 Journal of magnetic resonance imaging 13 4 e0880237-ab5e-40a8-a2e2-4bcf1f2e27ea Article (Published version) Restricted AUTOMATED REGISTRATION OF DYNAMIC M.pdf 446044 application/pdf e9039479b3a70241306da45e8e44e3ca6069fbb0956bd51503423120bac02fe2 restrictedAccess Faculté de médecine / Section de médecine clinique / Département de radiologie et informatique médicale

Title	Published in	Access level	OA Policy	Year	Views	Downloads

Automated registration of dynamic MR images for the quantification of myocardial perfusion	Journal of magnetic resonance imaging			2001	87	1

Archive ouverte UNIGE

Bidaut, Jean-Michel