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P 23.06: Normal fetal posterior fossa in magnetic resonance imaging: new biometric reference data and possible clinical significance
Author(s) -
Ber R.,
Hoffmann C.,
Shashar D.,
BarYosef O.,
Konen E.,
Achiron R.,
Katorza E.
Publication year - 2014
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.14449
Subject(s) - medicine , posterior cranial fossa , cerebellum , magnetic resonance imaging , pathological , fetus , nuclear medicine , posterior fossa , biometric data , anatomy , nuclear magnetic resonance , radiology , pathology , biometrics , physics , pregnancy , genetics , biology , computer security , computer science
Results 151 To 211 MRI examinations were selected adequate for measuring each structure, resulting in a normal biometry curve according to gestational age, for each parameter. Analysis of the ratio parameters showed that vermian lobes ratio and cerebellar hemispheres ratio stay constant with gestational age, and vermis to cisterna magna ratio varies with gestational age. Measurements of the 5 pathological fetuses are presented on the normal curves. Inter-observer agreement was excellent, with most parameters’ intraclass correlation coefficient above 0.9, and only 2 parameters below 0.8.