Keywords: Data Acquisition, Heart, 3D cardiac image, 3D cine image, localized quadratic encoding
Motivation: A gated 3D cardiac cine MRI will be useful to evaluate cardiac structure and function from different viewing angles, unlike conventional 2D scans covering only specific orientations.
Goal(s): To develop a retrospectively cardiac gated 3D imaging sequence for the cine scan with reasonable breath-hold time and reconstruction speed.
Approach: A bSSFP sequence was combined with Localized Quadratic Encoding RF pulses for the cardiac gated 3D imaging.
Results: The 3D cardiac cine imaging requires around 20 breath-holds and each breath-hold takes around 25 seconds. The images feature similar soft tissue contrast to the conventional 2D bSSFP scanning with isotropic resolution along different viewing angles.
Impact: The proposed method enables a 3D cardiac cine scan with reasonable breath-hold duration and much faster reconstruction speed.
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