High-dimensional fast convolutional framework (HICU) for calibrationless MRI.
High-dimensional fast convolutional framework (HICU) for calibrationless MRI.
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DOI:
10.1002/mrm.28721
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发表时间:
2021-09
影响因子:
3.3
通讯作者:
Ahmad R
中科院分区:
文献类型:
--
作者:
Zhao S;Potter LC;Ahmad R
To present a computational procedure for accelerated, calibrationless magnetic resonance image (Cl-MRI) reconstruction that is fast, memory efficient, and scales to high-dimensional imaging. Cl-MRI methods can enable high acceleration rates and flexible sampling patterns, but their clinical application is limited by computational complexity and large memory footprint. The proposed computational procedure, HIgh-dimensional fast ConvolUtional framework (HICU), provides fast, memory-efficient recovery of unsampled k-space points. For demonstration, HICU is applied to six 2D T2-weighted brain, seven 2D cardiac cine, five 3D knee, and one multi-shot diffusion weighted imaging (MSDWI) datasets. The 2D imaging results show that HICU can offer one to two orders of magnitude computation speedup compared to other Cl-MRI methods without sacrificing imaging quality. The 2D cine and 3D imaging results show that the computational acceleration techniques included in HICU yield computing time on par with SENSE-based compressed sensing methods with up to 3 dB improvement in signal-to-error ratio and better perceptual quality. The MSDWI results demonstrate the feasibility of HICU for a challenging multi-shot echo-planar imaging application. The presented method, HICU, offers efficient computation and scalability as well as extendibility to a wide variety of MRI applications.
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影响因子:
3.1
作者:
Fornasier, Massimo;Rauhut, Holger;Ward, Rachel
通讯作者:
Ward, Rachel
影响因子:
3.3
作者:
Haldar JP;Zhuo J
通讯作者:
Zhuo J
影响因子:
2.2
作者:
Larsson, EG;Erdogmus, D;Fitzsimmons, JR
通讯作者:
Fitzsimmons, JR
DOI:
10.1109/29.1488
发表时间:
1988-01-01
期刊:
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING
影响因子:
--
作者:
CADZOW, JA
通讯作者:
CADZOW, JA
影响因子:
14.9
作者:
Ahmad R;Bouman CA;Buzzard GT;Chan S;Liu S;Reehorst ET;Schniter P
通讯作者:
Schniter P