Free-breathing with motion-correction and video projection during cardiac MRI : a paediatric design !
© Bonnemains et al.; licensee BioMed Central Ltd. 2014
Published: 16 January 2014
Cardiac magnetic resonance imaging with children is a complex exam because it requires cooperation of the children to stay motionless and perform multiple breath-holding. This issue is particularly accute for fibrosis detection with late gadolinium enhancement which requires strict immobility during acquisition. In many situations, children must undergo general anaesthesia because such cooperation is too difficult to obtain. However,1/cooperation and stillness is easily obtained when children are proposed funny derivative occupation (such as movies to watch) during the exam and 2/the blurring effect induced by free-breathing can be corrected by a retrospective non-rigid adaptative motion correction algorithm such as GRICS (Odille, MRM 2008).
Exams were easily performed. Every children found the experience enjoyable. For three of them, the exam revealed diffuse fibrosis in the lateral or infero-lateral segments, as illustrated in Figure 1C and 1D, whereas the images before injection were normal and no alteration of ejection fraction was noted.
Paediatric complete free-breathing cardiac MRI is feasible with GRICS and simple video equipment. GRICS greatly simplifies the organisation of cardiomyopathy MRI examination with young children. This is the first report of the use of GRICS with patients.
Joint funding from INSERM,France and AFM,France (French Association against Myopathy) under the ID C13-04.
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