Abstract #1131

Evaluation of Cardiac Mechanical Dyssynchrony with Longitudinal Strain Analysis in 4-Chamber Cine Magnetic Resonance Imaging

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.