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EP07.25: Standardisation and validation of two methods of measurement of the fetal cerebral lateral ventricles
Author(s) -
Easton A.J.,
Fernandez A.,
Albert A.
Publication year - 2019
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.21251
Subject(s) - medicine , limits of agreement , gestational age , nuclear medicine , mean difference , cerebral ventricle , bland–altman plot , prospective cohort study , anatomy , surgery , pregnancy , confidence interval , biology , genetics
RESULTS The Bland-Altman analysis revealed an estimated bias = 0.45 (95%CI=0.14-0.76). On average, the STG method estimated a 0.45mm wider measurement compared to the ACPOS method. The technical feasibility of the ACPOS method was limited by GA. The parieto-occipital sulcus (POS) was seen as a slight depression in fetuses less than 21 weeks, making it more difficult to accurately identify the landmark especially at beam depths greater than 10cm (can be associated with BMI>30). OBJECTIVES To estimate the difference in measurements between the ambient cistern/parieto-occipital sulcus (ACPOS) method4 and the transventricular suprathalamic (STG)5 method. To establish the technical feasibility of the ACPOS method.