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Upright pelvimetry using MRI for the prediction of birth associated cephalo-pelvic disproportion following induction of labour.

Hannah Grace Williams¹, Andrew Cooper¹, Lesley Hodgen², Catriona Hussain², Nia Jones³, and Penny Gowland¹
¹Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham, United Kingdom, ²Queens Medical Centre, NUH NHS Trust, Nottingham, United Kingdom, ³Faculty of Medicine and Health, University of Nottingham, Nottingham, United Kingdom

We have developed an MRI protocol to assess fetal size and maternal pelvic measurements in supine and upright positions to determine whether they can be used as a predictor of a woman's risk of emergency C-section after the induction of labour.

Figure 2 – SSFSE images taken on a 1.5T GE scanner that were used to measure maternal pelvic dimensions. Left - sagittal measures of pelvic inlet and outlet. Right – Oblique axial measures of pelvic inlet and outlet.

Figure 1 - SSFSE images taken on a 1.5T GE scanner that were used to measure fetal volume (left) and fetal shoulder width (right).