Abstract #4571

T2-Weighted Foetal Brain MRI: Utilising Slice-To-Volume Reconstruction to Reduce Repeat Acquisition Due to Fetal Motion

Elaine Felicity Green¹, Emer Hughes¹, Kathleen Colford¹, Louise Dillon¹, Joanna Allsop¹, Laura McCabe¹, Suzanne Hiscocks¹, Lara Waite¹, Anthony Price¹, Jana Hutter¹, Laurence Jackson¹, Maria Murgasova-Kuklisova¹, Joseph V Hajnal¹, and Mary A Rutherford¹

¹Centre for the Developing Brain, School of Biomedical Engineering and Imaging Sciences, Kings College London, London, United Kingdom

Single-shot turbo spin echo T2 (SSTSE) is a common sequence used in fetal brain MRI. It is typically acquired in stacks that are positioned according to fetal brain anatomy, producing images that are radiologically in-plane; axial, sagittal, and coronal. However, fetal motion can cause images to be out-of-plane and repeats are often necessary to rectify this. This study proposes a new, optimised method that acquires stacks in planes set to maternal anatomy, rather than fetal brain. We then utilise slice-volume reconstruction to re-register the volume to standard radiological planes.

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