Accelerated Cardiac CINE Imaging with CAIPIRINHA and Partial Parallel Acquisition

doi:10.11938/cjmr20172555

Abstract

Abstract: Cardiac magnetic resonance imaging (CMRI) is a non-invasive technique that features multi-contrast and allows imaging at arbitrary orientations. However, the clinical applications of cardiac MRI are limited, mainly due to its long scan time. To speed up cardiac CINE imaging, a multi-fold accelerated cardiac CINE imaging method based on simultaneous multi-slice imaging and reconstruction technique was proposed. By combining the controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) technique and a partial parallel acquisition (PPA) scheme, a four-fold acceleration (i.e., 2-fold along the phase encoding direction and 2-fold along the slice encoding direction) was achieved. The proposed technique was tested and verified on phantoms and human subjects using an improved image reconstruction method SENSE/GRAPPA. Results demonstrated that the proposed method is effective in reducing cardiac CINE scan time, while preserving image quality and accuracy of cardiac function assessment.

Key words: cardiac CINE imaging, CAIPIRINHA, SENSE/GRAPPA, MRI, parallel imaging

CLC Number:

O482.53

HUANG Xiao-qian, ZHAO Le-le, CHEN Li-yong, XU Jian, CHEN Qun. Accelerated Cardiac CINE Imaging with CAIPIRINHA and Partial Parallel Acquisition[J]. Chinese Journal of Magnetic Resonance, 2017, 34(3): 283-293.

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