Evaluation of slice accelerations using multiband echo planar imaging at 3 T.
Evaluation of slice accelerations using multiband echo planar imaging at 3 T.
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DOI：
10.1016/j.neuroimage.2013.07.055
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发表时间：
2013-12
期刊：
影响因子：
5.7
通讯作者：
Uğurbil K
中科院分区：
文献类型：
--
作者：
Xu J;Moeller S;Auerbach EJ;Strupp J;Smith SM;Feinberg DA;Yacoub E;Uğurbil K
We evaluate residual aliasing among simultaneously excited and acquired slices in slice accelerated multiband (MB) echo planar imaging (EPI). No in-plane accelerations were used in order to maximize and evaluate achievable slice acceleration factors at 3 Tesla. We propose a novel leakage (L-) factor to quantify the effects of signal leakage between simultaneously acquired slices. With a standard 32-channel receiver coil at 3 Tesla, we demonstrate that slice acceleration factors of up to eight (MB = 8) with blipped controlled aliasing in parallel imaging (CAIPI), in the absence of in-plane accelerations, can be used routinely with acceptable image quality and integrity for whole brain imaging. Spectral analyses of single-shot fMRI time series demonstrate that temporal fluctuations due to both neuronal and physiological sources were distinguishable and comparable up to slice-acceleration factors of nine (MB = 9). The increased temporal efficiency could be employed to achieve, within a given acquisition period, higher spatial resolution, increased fMRI statistical power, multiple TEs, faster sampling of temporal events in a resting state fMRI time series, increased sampling of q-space in diffusion imaging, or more quiet time during a scan.
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影响因子：
2.2
作者：
CONOLLY, S;NISHIMURA, D;GLOVER, G
通讯作者：
GLOVER, G
影响因子：
3.3
作者：
Goelman, G
通讯作者：
Goelman, G
影响因子：
3.7
作者：
Feinberg DA;Moeller S;Smith SM;Auerbach E;Ramanna S;Gunther M;Glasser MF;Miller KL;Ugurbil K;Yacoub E
通讯作者：
Yacoub E
影响因子：
3.3
作者：
Auerbach, Edward J.;Xu, Junqian;Yacoub, Essa;Moeller, Steen;Ugurbil, Kamil
通讯作者：
Ugurbil, Kamil
影响因子：
3.3
作者：
Feinberg, DA;Reese, TG;Wedeen, VJ
通讯作者：
Wedeen, VJ