{'fraction_non_alphanumeric': 0.04232365145228216, 'fraction_numerical': 0.016597510373443983, 'mean_word_length': 4.742857142857143, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
OP16.10: Measurement of neonatal cochlear function following exposure to magnetic resonance imaging in utero

22 weeks. The radiation dose to the fetus ranged from 2.5 to 4.5 mSv. The CT diagnosis included thanatophoric dysplasia (n = 1), osteogenesis imperfecta (OI) (n = 2), intra-uterine growth restriction (IUGR)(n = 2), achondroplasia (n = 1), mesomelic dysplasia (n = 1) and unknown SD (n = 1). Three cases (38%) had discordant US and CT diagnoses. The 2 CT cases diagnosed with OI were reported as camptomelic dysplasia by US. The diagnosis of OI was confirmed by genetic analysis. One CT IUGR case, was reported as an ‘uncertain SD’ by US. One case had an uncertain diagnosis both at CT and US. Postmortem autopsy did not reveal an etiology for the multiple fetal abnormalities. The 4 remaining cases had concordant CT and US diagnosis. Discussion: We present an alternative imaging modality to evaluate SDs that demonstrates excellent depiction of the fetal bones, improved characterization of fetal fractures and bone mineralization when compared to US. CT imaging for fetuses at risk for a SD may assist clinicians to more accurately counsel families regarding neonatal morbidity and mortality.