Motion correction in periodically-rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) and turboprop MRI.
Motion correction in periodically-rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) and turboprop MRI.
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DOI：
10.1002/mrm.22004
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发表时间：
2009-07
影响因子：
3.3
通讯作者：
Arfanakis, Konstantinos
中科院分区：
文献类型：
--
作者：
Tamhane, Ashish A.;Arfanakis, Konstantinos
PROPELLER and Turboprop-MRI are characterized by greatly reduced sensitivity to motion, compared to their predecessors, fast spin-echo and gradient and spin-echo, respectively. This is due to the inherent self-navigation and motion correction of PROPELLER-based techniques. However, it is unknown how various acquisition parameters that determine k-space sampling affect the accuracy of motion correction in PROPELLER and Turboprop-MRI. The goal of this work was to evaluate the accuracy of motion correction in both techniques, to identify an optimal rotation correction approach, and determine acquisition strategies for optimal motion correction. It was demonstrated that, blades with multiple lines allow more accurate estimation of motion than blades with fewer lines. Also, it was shown that Turboprop-MRI is less sensitive to motion than PROPELLER. Furthermore, it was demonstrated that the number of blades does not significantly affect motion correction. Finally, clinically appropriate acquisition strategies that optimize motion correction were discussed for PROPELLER and Turboprop-MRI.
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影响因子：
3.2
作者：
Arfanakis, Konstantinos;Gui, Minzhi;Carew, John D.
通讯作者：
Carew, John D.
影响因子：
19.7
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3.3
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3.3
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Renshaw, PF