Prospective motion correction with volumetric navigators (vNavs) reduces the bias and variance in brain morphometry induced by subject motion
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- 作者：M. Dylan Tisdalla ; b ; 1 ; tisdall@nmr.mgh.harvard.edu" class="auth_mail" title="E-mail the corresponding author ; Martin Reutera ; c ; g ; 1 ; Abid Qureshic ; Randy L. Bucknera ; d ; e ; f ; Bruce Fischla ; b ; g ; André ; J.W. van der Kouwea ; b
- 关键词：Head motion ; Motion correction ; Bias ; MRI ; Cortical gray matter estimates ; Volume ; Thickness ; Quality control
- 刊名：NeuroImage
- 出版年：2016
- 出版时间：15 February 2016
- 年：2016
- 卷：127
- 期：Complete
- 页码：11-22
- 全文大小：1172 K
文摘
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Motion correction with volumetric navigators (vNavs) reduces motion-induced biases in gray matter and brain volume estimates.
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Additionally, motion correction with vNavs reduces variance in morphometry measures due to subject motion.
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Our methods can be used to evaluate the impact of motion on studies with different MRI scanner equipment or pulse sequences.