title: Pelvimetry by magnetic resonance imaging in breech presentation.
abstract: Evaluation of the pelvis by pelvimetry plays an important role in selecting patients with term breech presentation for possible vaginal delivery. X-ray pelvimetry involves the disadvantage of fetal exposure to ionizing radiation. Computed tomography reduces the amount of radiation markedly, but there is still a risk. Ten patients with breech presentation at term underwent antepartum pelvimetry with magnetic resonance imaging, following by postpartum magnetic resonance pelvimetry and x-ray pelvimetry. Measurements with magnetic resonance imaging are as reliable as those obtained with x-ray pelvimetry and the contrast of the magnetic resonance images is even better. The advantages of magnetic resonance pelvimetry are clear: no ionizing radiation and reliable pelvimetry results in cases of term breech presentation in which a normal pelvis is a prerequisite for safe vaginal delivery.
authors.affiliation: Department of Obstetrics and Gynecology, University Hospital, Groningen, The Netherlands.
authors.forename: A J
authors.initials: AJ
authors.lastname: van Loon
authors.forename: A
authors.initials: A
authors.lastname: Mantingh
authors.forename: C J
authors.initials: CJ
authors.lastname: Thijn
authors.forename: E L
authors.initials: EL
authors.lastname: Mooyaart
mesh_terms: D001946:Breech Presentation; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D010387:Pelvimetry / Q000379:methods; D011247:Pregnancy