Masateru Kawakubo1, 2, Michinobu Nagao3, Seiji Kumazawa4, Akiko Suyama Chishaki4, Hiroshi Honda5, Junji Morishita4
1Division of Radiology, Department of Medical Technology, Kyushu University Hospital, Fukuoka, Japan; 2Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; 3Department of Molecular Imaging & Diagnosis, Department of Clinical Radiology, Graduate School of, Kyushu University, Fukuoka, Japan; 4Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan; 5Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
In order to predict response to cardiac resynchronization therapy (CRT), a longitudinal strain analysis with echocardiography is used in the evaluation of mechanical dyssynchrony. Although analysis with echocardiography is restricted due to the narrow field of view (FOV), four-chamber (4CH) cine magnetic resonance imaging (MRI) has no restrictions due to the FOV and thus should allow a more precise evaluation of cardiac dyssynchrony. The longitudinal strain analysis using MRI has not been investigated in terms of cardiac dyssynchrony. We suggest an evaluation of mechanical dyssynchrony by using longitudinal strain analysis in 4CH cine MRI is useful for selecting CRT patients.