Fetal cardiac cine imaging using highly accelerated dynamic MRI with retrospective motion correction and outlier rejection.

ABSTRACT:

Purpose

Development of a MRI acquisition and reconstruction strategy to depict fetal cardiac anatomy in the presence of maternal and fetal motion.

Methods

The proposed strategy involves i) acquisition and reconstruction of highly accelerated dynamic MRI, followed by image-based ii) cardiac synchronization, iii) motion correction, iv) outlier rejection, and finally v) cardiac cine reconstruction. Postprocessing entirely was automated, aside from a user-defined region of interest delineating the fetal heart. The method was evaluated in 30 mid- to late gestational age singleton pregnancies scanned without maternal breath-hold.

Results

The combination of complementary acquisition/reconstruction and correction/rejection steps in the pipeline served to improve the quality o

SUBMITTER: van Amerom JFP 

PROVIDER: S-EPMC5763466 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature