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Abstract #1282

A Retrospective Cardiac Gating Method using Simultaneously Acquired Navigator

Byungjai Kim1, Hyunseok Seo1, Dongchan Kim1, Jaejin Cho1, Kinam Kwon1, Seohee So1, Kyungtak Min1, Yoonmee Lee1, Youngwoo Park1, and Hyunwook Park1

1Korea Advanced Institute of Science and Technology, Daejeon, Korea, Republic of

A cardiac gating method using a navigator MR signal requires the additional acquisition steps interleaved with the acquisition of image signals. To eliminate the additional acquisitions for navigators, the proposed method obtains an image signal and a navigator signal at the same time, and separates them in post-processing. Cardiac motion information estimated from the separated navigators is used for retrospective cardiac gating. To demonstrate the feasibility of the proposed method, in-vivo experiments were performed for cardiac MRI with short axis view.

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