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Abstract #1546

Comparison of US and MR measurement of fetal biometrics at 28-32 weeks with a real-time MR sequence

Nicholas Hilliard 1 , Rebecca Baker 1 , Andrew Patterson 1 , Martin Graves 1 , Christoph Lees 2 , Pat Set 1 , and David J Lomas 1

1 Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, United Kingdom, 2 Department of Maternofetal Medicine, Imperial College Healthcare NHS Trust, London, United Kingdom

This study makes comparison between MRI and US measurements of standard fetal biometrics (abdominal circumference [AC], biparietal diameter [BPD], head circumference [HC] and femur length [FL]), in the fetus of 28-32 weeks gestational age. A real-time SSFSE sequence was developed to allow the MR operator to acquire images in the optimal plane for accurate measurement. Results show that BPD and HC measurements with MR were consistent. The length of time for acquisition was acceptable. Further development of the real-time SSFSE technique may be useful in comprehensive biometric assessment, and in situations where accurate measurements are important.

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