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Hippocampal development at gestation weeks 23 to 36: An ultrasound study on preterm neonates
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för onkologi, radiologi och klinisk immunologi, Enheten för radiologi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa. (Barnendokrinologisk forskning/Gustafsson)
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för onkologi, radiologi och klinisk immunologi, Enheten för radiologi.
2010 (engelsk)Inngår i: Neuroradiology, ISSN 0028-3940, E-ISSN 1432-1920, Vol. 52, nr 6, s. 489-494Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

INTRODUCTION: During fetal development, the hippocampal structures fold around the hippocampal sulcus into the temporal lobe. According to the literature, this inversion should be completed at gestation week (GW) 21. Thereafter, the hippocampal shape should resemble the adult shape. However, incomplete hippocampal inversion (IHI) is found in 19% of the common population. The aim of this study was to study fetal hippocampal development by examining neonates born preterm. METHODS: We analyzed cranial ultrasound examinations, performed as a part of the routine assessment of all preterm infants, over a 3-year period and excluded the infants with brain pathology. The final material consisted of 158 children born <35 GW. A rounded form (the ratio between the horizontal and vertical diameters of the hippocampal body <25 GW and >/=25 GW was statistically highly significant (p < 0.001). The frequency of bilateral IHI was highest in the youngest age group. In the other groups, the left-sided IHI was the most common. CONCLUSION: In about 50% of the neonates, hippocampal inversion is not completed up to GW 24; but from 25 GW onwards, the frequency and laterality of IHI is similar to that in the adult population.

sted, utgiver, år, opplag, sider
2010. Vol. 52, nr 6, s. 489-494
Emneord [en]
Fetal development, Ultrasonography, Hippocampus, Premature infants, Gestational age, Malrotation
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-124857DOI: 10.1007/s00234-010-0673-xISI: 000277790000003PubMedID: 20352419OAI: oai:DiVA.org:uu-124857DiVA, id: diva2:318060
Tilgjengelig fra: 2010-05-06 Laget: 2010-05-06 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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