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Proceedings Paper

Robust motion correction and outlier rejection of in vivo functional MR images of the fetal brain and placenta during maternal hyperoxia
Author(s): Wonsang You; Ahmed Serag; Iordanis E. Evangelou; Nickie Andescavage; Catherine Limperopoulos
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Paper Abstract

Subject motion is a major challenge in functional magnetic resonance imaging studies (fMRI) of the fetal brain and placenta during maternal hyperoxia. We propose a motion correction and volume outlier rejection method for the correction of severe motion artifacts in both fetal brain and placenta. The method is optimized to the experimental design by processing different phases of acquisition separately. It also automatically excludes high-motion volumes and all the missing data are regressed from ROI-averaged signals. The results demonstrate that the proposed method is effective in enhancing motion correction in fetal fMRI without large data loss, compared to traditional motion correction methods.

Paper Details

Date Published: 17 March 2015
PDF: 13 pages
Proc. SPIE 9417, Medical Imaging 2015: Biomedical Applications in Molecular, Structural, and Functional Imaging, 94170O (17 March 2015); doi: 10.1117/12.2082451
Show Author Affiliations
Wonsang You, Children's National Medical Ctr. (United States)
Ahmed Serag, Children's National Medical Ctr. (United States)
Iordanis E. Evangelou, Children's National Medical Ctr. (United States)
Nickie Andescavage, Children's National Medical Ctr. (United States)
Catherine Limperopoulos, Children's National Medical Ctr. (United States)


Published in SPIE Proceedings Vol. 9417:
Medical Imaging 2015: Biomedical Applications in Molecular, Structural, and Functional Imaging
Barjor Gimi; Robert C. Molthen, Editor(s)

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