Patient-adaptive reconstruction and acquisition in dynamic imaging with sensitivity encoding (PARADISE).
Patient-adaptive reconstruction and acquisition in dynamic imaging with sensitivity encoding (PARADISE).
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DOI：
10.1002/mrm.22444
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发表时间：
2010-08
影响因子：
3.3
通讯作者：
Bresler, Yoram
中科院分区：
文献类型：
--
作者：
Sharif, Behzad;Derbyshire, J. Andrew;Faranesh, Anthony Z.;Bresler, Yoram
MR imaging of the human heart without explicit cardiac synchronization promises to extend the applicability of cardiac MR to a larger patient population and potentially expand its diagnostic capabilities. However, conventional non-gated imaging techniques typically suffer from low image quality or inadequate spatio-temporal resolution and fidelity. Patient-Adaptive Reconstruction and Acquisition in Dynamic Imaging with Sensitivity Encoding (PARADISE) is a highly-accelerated non-gated dynamic imaging method that enables artifact-free imaging with high spatio-temporal resolutions by utilizing novel computational techniques to optimize the imaging process. In addition to using parallel imaging, the method gains acceleration from a physiologically-driven spatio-temporal support model; hence, it is doubly accelerated. The support model is patient-adaptive, i.e., its geometry depends on dynamics of the imaged slice, e.g., subject’s heart-rate and heart location within the slice. The proposed method is also doubly adaptive as it adapts both the acquisition and reconstruction schemes. Based on the theory of time-sequential sampling, the proposed framework explicitly accounts for speed limitations of gradient encoding and provides performance guarantees on achievable image quality. The presented in-vivo results demonstrate the effectiveness and feasibility of the PARADISE method for high resolution non-gated cardiac MRI during a short breath-hold.
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