Normal appearances and dimensions of the foetal cavum septi pellucidi and vergae on in utero MR imaging.
Neuroradiology
; 62(5): 617-627, 2020 May.
Article
em En
| MEDLINE
| ID: mdl-32002585
ABSTRACT
PURPOSE:
The aim of this study is to provide normative data about the appearances and dimensions of the cavum septi pellucidi and vergae (CSPV) on in utero MR (iuMR) imaging in second and third trimester foetuses.METHODS:
Two hundred normal foetuses (from a low-risk pregnancy, with normal ante-natal USS findings and no intracranial abnormality of iuMR) had iuMR imaging between 18 and 37 gestational weeks (gw). The anatomical features on those studies were compared with published atlases of post-mortem foetal brains. The length, width and volume of the CSPV were measured in all foetuses.RESULTS:
The anatomy of the CSPV and its relationship with the corpus callosum and the fornices on iuMR imaging was comparable with post-mortem data at all gestational ages studied. The length of the CSPV increased throughout pregnancy, whereas the width and volume of CSPV reached a maximum between 29 and 31 gw and then showed a reduction later in pregnancy.CONCLUSION:
The iuMR imaging features of the CSPV and its close anatomical relations closely correspond to post-mortem data. The CSPV was patent in all cases but we have shown that closure commences in the midpart of the third trimester and advances in a posterior to anterior direction.Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Septo Pelúcido
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Imageamento por Ressonância Magnética
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Ventrículos Cerebrais
Limite:
Female
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Humans
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Pregnancy
Idioma:
En
Revista:
Neuroradiology
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Reino Unido