Sequential analysis of the normal fetal fissures with three-dimensional ultrasound: A longitudinal study

Elena Contro, Ginevra Salsi, Elisa Montaguti, Giovanni Morganelli, Gianluigi Pilu, Nicola Rizzo, Maria Paola Bonasoni, Tullio Ghi

Research output: Contribution to journalArticlepeer-review


Objective: To perform a sequential analysis of the main cortical fissures in normal fetuses using 3D ultrasound. Methods: A cohort of patients with uncomplicated singleton pregnancies underwent three consecutive transabdominal scans at 19-21, 26-28 and 30-34weeks. Volumes of the fetal head were acquired and searched in the multiplanar mode for the following cortical fissures: sylvian, parieto-occipital, calcarine, hippocampus and cingulate. A qualitative analysis of these sulci was performed in each volume by an experienced operator (A) and a trainee (B). By placing the dot on the sulcus in one plane, it was evaluated whether it was visible also in other planes. Results: Fifty patients were included in the study. At 19-21weeks, the sylvian and parieto-occipital sulci were visualized on at least one plane by both operators in all cases. At 26-28weeks, all fissures were visualized by both operators on at least one plane, with no significant difference between the performances of the two operators. At 30-34weeks, a mild overall decline in the accuracy of identification of all the cerebral fissures was observed. Conclusions: 3D multiplanar mode allows a systematic evaluation of the cortical fissures in normal fetuses since midtrimester.

Original languageEnglish
Pages (from-to)493-499
Number of pages7
JournalPrenatal Diagnosis
Issue number5
Publication statusPublished - May 1 2015
Externally publishedYes

ASJC Scopus subject areas

  • Obstetrics and Gynaecology
  • Genetics(clinical)


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