Prenatal diagnosis · 2017
Fetal brain injury in complicated monochorionic pregnancies: diagnostic yield of prenatal MRI following surveillance ultrasound and influence on prognostic counselling.
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Robinson Alice, Teoh Mark, Edwards Andrew, Fahey Michael, Goergen Stacy
Аннотация
OBJECTIVE: This study aimed to determine the additional diagnostic information provided by prenatal (fetal) magnetic resonance imaging (pMRI) following tertiary ultrasound (US) for fetal cranial abnormalities in complicated monochorionic gestations.
METHODS: Women with complicated monochorionic gestations complicated by twin-twin transfusion syndrome, co-twin demise (CD), selective intrauterine growth restriction, and/or twin anaemia-polycythaemia sequence who were referred for pMRI after tertiary US were included. Additional diagnostic information by pMRI that changed prognostic counselling was the primary outcome.
RESULTS: Thirty-three women with 48 live fetuses had pMRI at a median of 25 weeks (range: 21-29). Three of ten survivors of spontaneous CD, one of eight survivors of CD after twin-twin transfusion syndrome and 1/30 co-survivors had diagnostic information added by pMRI that altered counselling; US was normal in two and in the other three underrepresented parenchymal injury (5/33 = 15%; 95% confidence interval ±0.27-0.03). Additional findings included occipital lobe infarction, hemispheric injury, dural sinus thrombosis, ischaemia-producing polymicrogyria and intraventricular haemorrhage. Another 8/33 women had additional information provided by pMRI that did not alter counselling.
CONCLUSION: Prenatal magnetic resonance imaging resulted in changed prognostic counselling in 5/33 pregnancies. Evaluation of incorporation of pMRI into routine surveillance of complicated monochorionic gestations is needed. © 2017 John Wiley & Sons, Ltd.
METHODS: Women with complicated monochorionic gestations complicated by twin-twin transfusion syndrome, co-twin demise (CD), selective intrauterine growth restriction, and/or twin anaemia-polycythaemia sequence who were referred for pMRI after tertiary US were included. Additional diagnostic information by pMRI that changed prognostic counselling was the primary outcome.
RESULTS: Thirty-three women with 48 live fetuses had pMRI at a median of 25 weeks (range: 21-29). Three of ten survivors of spontaneous CD, one of eight survivors of CD after twin-twin transfusion syndrome and 1/30 co-survivors had diagnostic information added by pMRI that altered counselling; US was normal in two and in the other three underrepresented parenchymal injury (5/33 = 15%; 95% confidence interval ±0.27-0.03). Additional findings included occipital lobe infarction, hemispheric injury, dural sinus thrombosis, ischaemia-producing polymicrogyria and intraventricular haemorrhage. Another 8/33 women had additional information provided by pMRI that did not alter counselling.
CONCLUSION: Prenatal magnetic resonance imaging resulted in changed prognostic counselling in 5/33 pregnancies. Evaluation of incorporation of pMRI into routine surveillance of complicated monochorionic gestations is needed. © 2017 John Wiley & Sons, Ltd.