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Deformable Slice-to-Volume Registration for Motion Correction of Fetal Body and Placenta MRI.

Abstract：

:In in-utero MRI, motion correction for fetal body and placenta poses a particular challenge due to the presence of local non-rigid transformations of organs caused by bending and stretching. The existing slice-to-volume registration (SVR) reconstruction methods are widely employed for motion correction of fetal brain that undergoes only rigid transformation. However, for reconstruction of fetal body and placenta, rigid registration cannot resolve the issue of misregistrations due to deformable motion, resulting in degradation of features in the reconstructed volume. We propose a Deformable SVR (DSVR), a novel approach for non-rigid motion correction of fetal MRI based on a hierarchical deformable SVR scheme to allow high resolution reconstruction of the fetal body and placenta. Additionally, a robust scheme for structure-based rejection of outliers minimises the impact of registration errors. The improved performance of DSVR in comparison to SVR and patch-to-volume registration (PVR) methods is quantitatively demonstrated in simulated experiments and 20 fetal MRI datasets from 28-31 weeks gestational age (GA) range with varying degree of motion corruption. In addition, we present qualitative evaluation of 100 fetal body cases from 20-34 weeks GA range.

journal_name

IEEE Trans Med Imaging

journal_title

IEEE transactions on medical imaging

authors

Uus A,Zhang T,Jackson LH,Roberts TA,Rutherford MA,Hajnal JV,Deprez M

doi

10.1109/TMI.2020.2974844

subject

Has Abstract

pub_date

2020-09-01 00:00:00

pages

2750-2759

issue

9

eissn

0278-0062

issn

1558-254X

journal_volume

39

pub_type

杂志文章

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